9R Spring Drive
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Grand Seiko 9R Spring Drive
Spring Drive is Seiko’s exclusive movement that achieves an unprecedented level of accuracy (+/- 15 seconds per month on average, equivalent to +/- 1 second per day) by regulating a spring-driven watch with state-of-the-art electronic technology that functions without batteries or other external power source.
One of its unique features is a true continuously sweeping second hand, instead of the traditional beats per time unit as seen with traditional mechanical and most quartz watches. (Wikipedia)
Grand Seiko 9R Spring Drive uses a mainspring, barrel, automatic winder and stem winding like in a mechanical watch to store the watch energy. The conventional escapement is replaced with a device that Seiko calls a Tri-synchro Regulator to regulate the unwinding of the mainspring. The regulator controls the use of the three forms of energy used in the Spring Drive mechanism; the mechanical power of the mainspring, the electrical energy generated from this mechanical power, and the electromagnetic energy that governs the rotation of the glide wheel.
SBGA211 | SBGC223 |
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GRAND SEIKO SBGY007
Grand Seiko SBGY007 Specifications
- Exterior
Case Material Stainless steel Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Black (front) and blue (back) crocodile leather strap with blue stitches Bezel Material Fixed polished stainless steel Dial Color Ice blue pattern with engraved Grand Seiko logo below the 12 o’clock position, minute markers and Spring Drive logo at 6 o'clock position Dial Hands Tempered grey silver tone hour, minute, blue colored second hand with Zaratsu polished Dial Markers Grey silver tone batons with Zaratsu polished Crown Screw down at 3 o'clock position Case size Diameter 38.5 mm × Thickness 10.2 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R31 Instructions Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance Splash Resistant Magnetic resistance Equipped (4,800 A/m) Weight 68 g Functions Hour, minute, second hand Features - 30 jewels
- Case back with lion emblem
- Power reserve display
- Screw case back
- See-through case back
- Stop second hand function
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GRAND SEIKO SBGE271
Grand Seiko SBGE271 Specifications
- Exterior
Case Material Stainless steel Glass Material Box shaped sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Silver stainless steel bracelet Bezel Material Fixed polished stainless steel Dial Color Black color of autumn calm night sky texture with engraved Grand Seiko logo below the 12 o’clock position, minute markers and Spring Drive GMT logo at 6 o'clock position Dial Hands Tempered silver tone hour, minute second hand and gold tone GMT hand with Zaratsu polished Dial Markers Silver tone batons and double batons at 12 o'clock with Zaratsu polished Crown Screw down at 3 o'clock position Case size Diameter 40.2 mm × Thickness 14 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R66 Instructions Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar / 100 m Magnetic resistance Equipped (4,800 A/m) Functions Hour, minute, second hand, GMT hand, date window at 3 o'clock, power reserve Features - 24-hour hand (dual time display function)
- 30 jewels
- Calendar-linked time difference adjustment function
- Case back with 6 screws
- Case back with lion emblem
- Date display
- Power reserve display
- See-through case back
- Stop second hand function
Preorder
GRAND SEIKO SBGE269
Grand Seiko SBGE269 Specifications
- Exterior
Case Material Stainless steel Case Back See-through screw Glass Material Box shaped sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Silver stainless steel bracelet Bezel Material Fixed polished stainless steel Dial Color White snow color of winter landscape texture with engraved Grand Seiko logo below the 12 o’clock position, minute markers and Spring Drive GMT logo at 6 o'clock position Dial Hands Tempered silver tone hour, minute second hand and rose gold tone GMT hand with Zaratsu polished Dial Markers Silver tone batons and double batons at 12 o'clock with Zaratsu polished Crown Screw down at 3 o'clock position Case size Diameter 40.2 mm × Thickness 14 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R66 Instructions Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar / 100 m Magnetic resistance Equipped (4,800 A/m) Functions Hour, minute, second hand, GMT hand, date window at 3 o'clock, power reserve Features - 24-hour hand (dual time display function)
- 30 jewels
- Calendar-linked time difference adjustment function
- Case back with 6 screws
- Case back with lion emblem
- Date display
- Power reserve display
- See-through case back
- Stop second hand function
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GRAND SEIKO SLGA001
Grand Seiko SLGA001 Specifications
- Exterior
Case Material High-intensity titanium Case Back Solid titanium, screw-in type Glass Material Sapphire crystal Lumi Brite Lumibrite on hands, indexes and bezel Glass Coating Anti-reflective coating on inner surface Band Material Silver stainless steel bracelet and blue silicone strap Bezel Material Fixed polished stainless steel Dial Color Dark blue color dial with engraved Grand Seiko logo below the 12 o’clock position, minute markers and Spring Drive logo Dial Hands Zaratsu polished and tempered grey silver second hand Dial Markers Dots with batons at 3, 6, 9 o'clock and triangle at 12 o'clock with Zaratsu polished Crown Screw down at 4 o'clock position Case size Diameter 46.9 mm × Thickness 16 mm The Perimeter of Band 202 mm Clasp type Titanium three fold clasp with secure lock & push button release, solid & slide adjuster - Movement
Caliber no 9RA5 Movement Type Spring Drive Power reserve Approximately 120 hours (5 days) Accuracy ±0.5 second per day (±10 seconds per month) - Functions / Specifications
Water resistance 600 m / 2000 feet for saturation diving Magnetic resistance Equipped (4,800 A/m) Weight 164 g Functions Hour, minute, second hand, date window at 4 o'clock, power reserve, rotating bezel Features - 30 jewels
- Case back with lion emblem
- Date display
- LIMITED EDITION on the case back
- Power reserve display
- Screw case back
- Screw-down crown
- Serial number engraved on the case back
- Stop second hand function
- Unidirectional rotating bezel
Limited
GRAND SEIKO SBGC238
Grand Seiko SBGC238 Specifications
- Exterior
Case Material 18k rose gold Case Back See-through rose gold tone with Grand Seiko's lion emblem Glass Material Dual curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Lumi Brite Lumibrite on hands, indexes and bezel Band Material Dark blue crocodile leather strap Bezel Material Fixed polished stainless steel Dial Color Dark blue color dial with engraved Grand Seiko logo at 11 o’clock position and minute markers Dial Hands Zaratsu polished and tempered rose gold tone second hand Dial Markers Indexes with Zaratsu polished Crown Rose gold tone screw down at 3 o'clock position Case size Diameter 44.5 mm × Thickness 16.8 mm The Perimeter of Band 195 mm Clasp type Three fold clasp with push button release - Movement
Caliber no 9R96 Instruction Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±0.5 second per day (±10 seconds per month) - Functions / Specifications
Water resistance 20 bar Magnetic resistance Equipped (4,800 A/m) Weight 192 g Functions Hour, minute, second hand, dual time display, time difference adjustment, chronograph, GMT, date window at 3 o'clock Features - 24-hour hand
- 50 jewels
- Calendar-linked time difference adjustment function
- Case back with lion emblem
- Chronograph with 30 minutes & 12 hours
- LIMITED EDITION on the case back
- Power reserve display
- Screw case back
- Screw-down crown
- See-through case back
- Serial number engraved on the case back
GRAND SEIKO SBGD201
Grand Seiko SBGD201 Specifications
- Exterior
Case Material Platinum 950 Case Back See-through with power reserve indicator Glass Material Box shaped sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Black crocodile leather strap Bezel Material Fixed polished stainless steel Dial Color Silver color dial with engraved Grand Seiko logo at 12 o’clock position, minute markers and Spring Drive logo Dial Hands Zaratsu polished and tempered blue second hand Dial Markers Indexes with Zaratsu polished Crown Screw down at 3 o'clock position Case size Diameter 43 mm × Thickness 13.2 mm The Perimeter of Band 195 mm Clasp type Three fold clasp with push button release - Movement
Caliber no 9R01 Instruction Movement Type Spring Drive Power reserve Approximately 192 hours (8 days) Accuracy ±0.5 second per day (±10 seconds per month) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m) Weight 168 g Functions Hour, minute, second hand, power reserve indicator, time difference adjustment, 3 barrels, anti-magnetic Features - 56 jewels
- Power reserve display
- Screw case back
- See-through case back
- Stop second hand function
- Time difference adjustment function
Limited
GRAND SEIKO SBGZ001
Grand Seiko SBGZ001 Specifications
- Exterior
Case Material Platinum 950 Case Back Sapphire crystal see-through with power reserve indicator next to the bellflower-shaped barrel. The bellflower is the symbol of Shiojiri, where the Micro Artist Studio is located Glass Material High definition dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Black crocodile leather strap Bezel Material Fixed polished stainless steel Dial Color Snowflake with engraved Grand Seiko logo, minute markers, Spring Drive logo and special dial mark Dial Hands Zaratsu polished 14k white gold hands and tempered blue second hand Dial Markers Indexes with Zaratsu polished 14k white gold markers Crown Screw down at 3 o'clock position Case size Diameter 38.5 mm × Thickness 9.8 mm Clasp type Three fold clasp with push button release - Movement
Caliber no 9R02 Instruction Movement Type Spring Drive Power reserve Approximately 84 hours Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance Splash resistant Magnetic resistance Equipped (4,800 A/m) Functions Hour, minute, second hand, power reserve, torque return system, dual-spring barrel, 18k yellow gold plate Features - 39 jewels
- LIMITED EDITION on the case back
- Serial number engraved on the case back
- Power reserve display
- Screw case back
- See-through case back
- Stop seconds hand function
GRAND SEIKO SBGZ003
Grand Seiko SBGZ003 Specifications
- Exterior
Case Material Platinum 950 Case Back See-through with power reserve indicator next to the bellflower-shaped barrel. The bellflower is the symbol of Shiojiri, where the Micro Artist Studio is located Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Black crocodile leather strap Bezel Material Fixed polished stainless steel Dial Color Silver color dial with engraved Grand Seiko logo at 12 o'clock position, minute markers, Spring Drive logo and special dial mark Dial Hands Zaratsu polished 14k white gold hands and tempered blue second hand Dial Markers Indexes with Zaratsu polished 14k white gold markers Crown Screw down at 3 o'clock position Case size Diameter 38.5 mm × Thickness 9.8 mm Clasp type Three fold clasp with push button release - Movement
Caliber no 9R02 Instruction Movement Type Spring Drive Power reserve Approximately 84 hours Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance Splash resistant Magnetic resistance Equipped (4,800 A/m) Functions Hour, minute, second hand, power reserve, torque return system, dual-spring barrel Features - 39 jewels
- Power reserve display
- Screw case back
- See-through case back
- Stop seconds hand function
Sale! 
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GRAND SEIKO SBGA201
Grand Seiko SBGA201 Specifications
- Exterior
Case Material Stainless steel Case Back Screw see-through Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Stainless steel bracelet Dial Color Champagne (beige and silver tone) Bezel Material Stainless steel Case size Diameter 41 mm × Thickness 12.5 mm The perimeter of Band 195 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R65 Instruction Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 150 g Functions Hours, minutes, central seconds, power reserve, date Features - 30 jewels
- Case back with lion emblem
- Date display
- Power reserve display
- Screw case back
- Screw-down crown
- See-through case back
- Stop seconds hand function
Limited
GRAND SEIKO SBGE245
Grand Seiko SBGE245 Specifications
- Exterior
Case Material Stainless steel Case Back Solid with Grand Seiko's lion emblem Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Stainless steel bracelet and extra reinforced orange silicon strap Dial Color Mahogany-red sunburst finish Bezel Material Stainless steel with sapphire Lumibrite Luminous on hands, indexes and bezel Case size Diameter 44 mm × Length 50.8 mm x Thickness 14.7 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R66 Instruction Movement Type Spring Drive Movement Finish Polished screw heads, diagonal stripes, beveled edges, open-worked oscillating weight with blued “GS / Grand Seiko” inscription Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 20 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Functions Hours, minutes, central seconds, power reserve, date, two 24-hour time zones Features - 24-hour hand (dual time display function)
- 30 jewels
- Calendar-linked time difference adjustment function
- Case back with lion emblem
- Date display
- Power reserve display
- Rotating bezel (24-hour display)
- Screw solid case back with Grand Seiko's lion emblem
- Screw-down crown
- Stop seconds hand function
- Includes a strap made of reinforced silicon
-10%
GRAND SEIKO SBGE205
Grand Seiko SBGE205 Specifications
- Exterior
Case Material Stainless steel Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Case size Diameter 41 mm × Thickness 13.8 mm The perimeter of Band 198 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R66 Instruction Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 157 g Features - 24-hour hand (dual time display function)
- 30 jewels
- Calendar-linked time difference adjustment function
- Case back with lion emblem
- Date display
- Power reserve display
- Screw case back
- Screw-down crown
- See-through case back
- Stop seconds hand function
-10%
GRAND SEIKO SBGE201
Grand Seiko SBGE201 Specifications
- Exterior
Case Material Stainless steel Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Lumibrite Lumibrite on hands and indexes Case size Diameter 44 mm × Thickness 14.7 mm The perimeter of Band 191 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R66 Instruction Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 20 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 177 g Features - 24-hour hand (dual time display function)
- 30 jewels
- Calendar-linked time difference adjustment function
- Case back with lion emblem
- Date display
- Power reserve display
- Rotating bezel (24-hour display)
- Screw case back
- Screw-down crown
- Stop seconds hand function
Limited
GRAND SEIKO SBGE039
Grand Seiko SBGE039 Specifications
- Exterior
Case Material High intensity zirconia ceramic titanium Glass Material High definition dual-curved sapphire crystal Band Material Crocodile leather Bezel Material Zirconia ceramic titanium Glass Coating Anti-reflective coating on inner surface Case size Diameter 46.4 mm × Thickness 15 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R16 Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 114 g Features - 30 jewels
- GMT hand
- Zirconia ceramic bezel
- Screw see-through case back with Grand Seiko's lion emblem
- Screw-down crown
- Dark blue dial
Limited
GRAND SEIKO SBGE037
Grand Seiko SBGE037 Specifications
- Exterior
Case Material High intensity zirconia ceramic titanium Glass Material High definition dual-curved sapphire crystal Band Material Crocodile leather Bezel Material Zirconia ceramic titanium Glass Coating Anti-reflective coating on inner surface Case size Diameter 46.4 mm × Thickness 15 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R16 Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 114 g Features - 30 jewels
- GMT hand
- Zirconia ceramic bezel
- Screw see-through case back with Grand Seiko's lion emblem
- Screw-down crown
- Dark brown dial
Limited
GRAND SEIKO SBGE033
Grand Seiko SBGE033 Specifications
- Exterior
Case Material Stainless steel Glass Material High definition dual-curved sapphire crystal Band Material Crocodile leather Bezel Material Stainless steel Glass Coating Anti-reflective coating on inner surface Case size Diameter 41 mm × Thickness 13.8 mm Clasp type Deployment buckle - Movement
Caliber no 9R66 Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 98 g Features - Power reserve indicator
- 30 jewels
- Screw case back
- Screw-down crown
- See-through case back
- Green dial with luminous hand
Limited
GRAND SEIKO SBGE029
Grand Seiko SBGE029 Specifications
- Exterior
Case Material Stainless steel Glass Material High definition dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Case size Diameter 43.5 mm × Thickness 14.7 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R66 Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 20 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 177 g Features - 30 jewels
- Rotating bezel
- Screw case back
- Screw-down crown
- Solid case back with Grand Seiko's lion emblem
- Blue dial
-10%
GRAND SEIKO SBGC201
Grand Seiko SBGC201 Specifications
- Exterior
Case Material Stainless steel Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Case size Diameter 43.5 mm × Thickness 16.1 mm The perimeter of Band 201 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9R86 Instructions Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 seconds per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 187 g Features - 24-hour hand (dual time display function)
- 50 jewels
- Calendar-linked time difference adjustment function
- Chronograph with 30 minutes & 12 hours
- Power reserve display
- Screw case back
- Screw-down crown
- See-through case back
- Stop second hand function
Limited
GRAND SEIKO SBGC013
Grand Seiko SBGC013 Specifications
- Exterior
Case Material High-intensity titanium with ceramic bezel Glass Material High definition dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Case size Diameter 43.5 mm × Thickness 16.5 mm Band Material High-intensity titanium Clasp type Three-fold clasp with push button release with “GS” emblem in 18K yellow gold - Movement
Caliber no 9R96 Instructions Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±0.5 seconds per day (±10 seconds per month) - Functions / Specifications
Water resistance 10 bar / 100 m / 330 feet diver's Magnetic resistance Equipped (4,800 A/m / 60 gauss) Weight 125 g Features - 50 jewels
- Case back with lion emblem
- Date display
- Power reserve 72 hours
- Screw see-through case back
- Screw-down crown and buttons
- Chronograph up to 12 hours
- GMT hand
- Three-fold clasp with push button release
Limited
GRAND SEIKO SBGA391
Grand Seiko SBGA391 Specifications
- Exterior
Case Material Stainless steel Glass Material Sapphire Glass Coating Anti-reflective coating on inner surface Lumi Brite Lumibrite on hands and indexes Case size Diameter 44.2 mm × Thickness 14 mm The perimeter of Band 195 mm Clasp type Three-fold clasp with secure lock & push button release, solid & slide adjuster - Movement
Caliber no 9R65 Instructions Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 200 m / 660 ft diver's Magnetic resistance Equipped Weight 201 g Features - 30 jewels
- Case back with lion emblem
- Date display
- Power reserve display
- Screw case back
- Screw-down crown
- Stop seconds hand function
- Three-fold clasp with secure lock and extender
- Unidirectional rotating bezel
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GRAND SEIKO SBGA375
Specifications
- Case
Case Material Stainless steel Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflection coating on inner surface Case size Diameter 40 mm × Thickness 12.5 mm The perimeter of Band 197 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no. 9R65 Instructions Movement Type Spring Drive Power reserve Approximately 72 hours (3 days) Accuracy ±1 seconds per day / ±15 seconds per month (average) - Functions/Specifications
Water resistance 10 bar Magnetic resistance Equipped Weight 148 g Remarks - 30 jewels
- Case back with lion emblem
- Date display
- Power reserve display
- Screw case back
- Screw-down crown
- See-through case back
- Stop seconds hand function
