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 |
-10%
GRAND SEIKO SBGA229G
Grand Seiko SBGA229G 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
-10%
GRAND SEIKO SBGA407G
Grand Seiko SBGA407G Specifications
- Exterior
Case Material Stainless steel Glass Material Box shaped sapphire Glass Coating Anti-reflective coating on inner surface Case size Diameter 40.2 mm × Thickness 12.8 mm Band Material Crocodile leather 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 second per day / ±15 seconds per month (average) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped Features - 30 jewels
- Case back with 6 screws
- Date display
- Power reserve display
- See-through case back
- Stop seconds hand function
-10%
GRAND SEIKO SBGY002G
Grand Seiko SBGY002G Specifications
- Exterior
Case Material 18k yellow gold Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Case size Diameter 38.5 mm × Thickness 10.2 mm Band material Crocodile leather Clasp type Three-fold clasp with push button release - Movement
Movement 9R31 Instructions Driving system 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 Weight 92 g Remarks - 18K yellow gold clasp
- 30 jewels
- Case back with lion emblem
- Power reserve display
- Screw case back
- See-through case back
- Stop seconds hand function
-10%
GRAND SEIKO SBGE248G
Grand Seiko SBGE248G Specifications
- Exterior
Case Material Stainless steel with 18k yellow gold bezel Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Lumi Brite Lumibrite on hands, indexes and bezel Case size Diameter 44 mm × Thickness 14.7 mm The perimeter of Band 195 mm Clasp type Three-fold clasp with push button release - Movement
Movement 9R66 Instructions Driving system 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 Weight 190 g Remarks - 24-hour hand (dual time display function)
- 30 jewels
- Calendar-linked time difference adjustment function
- Date display
- Power reserve display
- Rotating bezel (24-hour display)
- Screw case back
- Screw-down crown
- Stop seconds hand function
Limited
-10%
GRAND SEIKO SBGC230G
Grand Seiko SBGC230G Specifications
- Exterior
Case Material 18k rose gold Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Lumi Brite Lumibrite on hands and indexes Case size Diameter 44.5 mm × Thickness 16.8 mm Band material Crocodile leather Clasp type Three-fold clasp with push button release - Movement
Movement 9R96 Instructions Driving system 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 Remarks - 24-hour hand (dual time display function)
- 50 jewels
- Calendar-linked time difference adjustment function
- 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
- Stop seconds hand function
-10%
GRAND SEIKO SBGA231G
Grand Seiko SBGA231G Specifications
- Exterior
Case Material High-intensity titanium 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 196 mm Clasp type Three-fold clasp with secure lock & push button release, solid & slide adjuster - Movement
Movement 9R65 Instructions Driving system 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 137 g Remarks - 30 jewels
- Case back with lion emblem
- Date display
- Power reserve display
- Screw case back
- Screw-down crown
- Stop second hand function
- Three-fold clasp with secure lock and extender
- Unidirectional rotating bezel
-10%
GRAND SEIKO SBGA373G
Grand Seiko SBGA373G Specifications
- Exterior
Case Material Stainless steel Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Case size Diameter 40 mm × Thickness 12.5 mm The perimeter of Band 197 mm Clasp type Three-fold clasp - Movement
Movement 9R65 Instructions Driving system 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 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 second hand function
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-10%
GRAND SEIKO SBGA293G
Grand Seiko SBGA293G Specifications
- Exterior
Case Material Stainless steel Glass Material Box shaped sapphire Glass Coating Anti-reflective coating on inner surface Case size Diameter 40.2 mm × Thickness 12.8 mm Band material Crocodile leather Clasp type Three-fold clasp with push button release - Movement
Movement 9R65 Instructions Driving system 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 Weight 85 g Remarks - 30 jewels
- Case back with 6 screws
- Case back with lion emblem
- Date display
- Power reserve display
- See-through case back
- Stop second hand function
GRAND SEIKO SBGA427G
Grand Seiko SBGA427G Specifications
- Exterior
Case Material Stainless steel Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Case size Diameter 39 mm × Thickness 12.3 mm Clasp type Three-fold clasp with push button release - Movement
Movement 9R65 Instructions Driving system 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 Remarks - 30 jewels
- Case back with lion emblem
- Date display
- Power reserve display
- Screw case back
- See-through case back
- Stop seconds hand function
GRAND SEIKO SBGA429G
Grand Seiko SBGA429G Specifications
- Exterior
Case Material Stainless steel Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Case size Diameter 39 mm × Thickness 12.3 mm Clasp type Three-fold clasp with push button release - Movement
Movement 9R65 Instructions Driving system 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 Remarks - 30 jewels
- Case back with lion emblem
- Date display
- Power reserve display
- Screw case back
- See-through case back
- Stop seconds hand function
Limited
Preorder
GRAND SEIKO SBGA405
Grand Seiko SBGA405 Specifications
- Exterior
Case Material High-intensity titanium Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Lumi Brite Lumibrite on hands, indexes and bezel Case size Diameter 44.5 mm × Thickness 14.3 mm Band material Shark Clasp type Three-fold clasp with push button release - Movement
Movement 9R15 Instructions Driving system 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 Weight 90 g Remarks - 30 jewels
- Power reserve display
- Screw case back
- Screw-down crown
- See-through case back
- Serial number engraved on the case back
- Stop second hand function
Limited
-10%
GRAND SEIKO SBGC231
Grand Seiko SBGC231 Specifications
- Exterior
Case Material High-intensity titanium Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Lumi Brite Lumibrite on hands, indexes and bezel Case size Diameter 44.5 mm × Thickness 16.8 mm Clasp type Three-fold clasp with push button release - Movement
Movement 9R96 Instructions Driving system 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 Remarks - 24-hour hand (dual time display function)
- 50 jewels
- Calendar-linked time difference adjustment function
- 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
- Stop seconds hand function
Limited
-10%
GRAND SEIKO SBGY003
Grand Seiko SBGY003 Specifications
- Exterior
Case Material Stainless steel Glass Material Dual-curved sapphire Glass Coating Anti-reflective coating on inner surface Case size Diameter 38.5 mm × Thickness 10.2 mm Band Material Crocodile leather Clasp type Three-fold clasp with push button release - Movement
Movement 9R31 Driving system 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 Weight 65 g Remarks - 30 jewels
- Case back with lion emblem
- LIMITED EDITION on the case back
- Power reserve display
- Screw case back
- See-through case back
- Serial number engraved on the case back
- Stop seconds hand function
Limited
GRAND SEIKO SBGA125
Specifications
- Case
Case High-intensity titanium Case back: High-intensity titanium and sapphire crystal Glass High definition dual-curved sapphire crystal Coating Anti-reflection coating on inner surface Case size Diameter 40 mm × Thickness 12.8 mm Band High-intensity titanium - Movement
Movement Caliber 9R65 Instructions Driving system Spring Drive Power reserve Approximately 72 hours Accuracy ±1 seconds per day (±15 seconds per month) - Functions/Specifications
Clasp Three-fold clasp with push button release Water resistance 10 bar Magnetic resistance 4800 A/m (60 gauss) Remarks Screw down crown Screw back See-through back Jewels: 30 Power reserve display function
GRAND SEIKO SBGC205
Specifications
- Case
Case High-intensity titanium case Case back: high-intensity titanium and sapphire crystal Glass Dual-curved sapphire crystal glass Coating Anti-reflection coating on inner surface Case size Diameter 43.5 mm × Thickness 16.1 mm The perimeter of bracelet 200.0 mm - Movement
Movement Caliber 9R86 Instruction Power reserve Approximately 72 hours (3 days) - Functions/Specifications
Water resistance 10 bar water resistance Magnetic resistance Magnetic resistance
GRAND SEIKO SBGC203
Specifications
- Case
Case Stainless steel case Case back: stainless steel and sapphire crystal Glass Dual-curved sapphire crystal glass Coating Anti-reflection coating on inner surface Case size Diameter 43.5 mm × Thickness 16.1 mm The perimeter of bracelet 201.0 mm - Movement
Movement Caliber 9R86 Instruction Power reserve Approximately 72 hours (3 days) - Functions/Specifications
Water resistance 10 bar water resistance Magnetic resistance Magnetic resistance
GRAND SEIKO SBGD202
Specifications
- Case
Case 18K rose gold Case back: 18K rose gold and sapphire crystal Glass Box-shaped sapphire crystal Coating Anti-reflection coating on inner surface Lumi Brite - Case size Diameter 43.0 mm × Thickness 13.2 mm The perimeter of bracelet 195.0 mm Band Crocodile leather - Movement
Movement Caliber 9R01 Driving system Spring Drive Power reserve Approximately 192 hours Accuracy ±0.5 second per day (±10 seconds per month) - Functions/Specifications
Clasp Three-fold clasp with push button release Water resistance 10 bar Magnetic resistance 4800 A/m (60 gauss) Weight 150.0 g
-10%
GRAND SEIKO SBGA211
Specifications
- Case
Case High-intensity titanium Case back: High-intensity titanium and sapphire crystal Glass High definition dual-curved sapphire crystal Coating Anti-reflection coating on inner surface Case size Diameter 41.0 mm × Thickness 12.5 mm The perimeter of bracelet 193.0 mm Band High-intensity titanium - Movement
Movement Caliber 9R65 Instructions Driving system Spring Drive Power reserve Approximately 72 hours Accuracy ±1 seconds per day (±15 seconds per month) - Functions/Specifications
Clasp Three-fold clasp with push button release Water resistance 10 bar Magnetic resistance 4800 A/m (60 gauss) Weight 100.0 g Remarks Screw down crown Screw back See-through back Anti-metal allergy Jewels: 30 Power reserve display function
Preorder
GRAND SEIKO SBGC223
Specifications
- Case
Case High-intensity titanium and ceramic Glass High definition dual-curved sapphire crystal Coating Anti-reflection coating on inner surface Case size Diameter 46.4 mm × Thickness 16.2 mm The perimeter of bracelet 190.0 mm Band High-intensity titanium and ceramic - Movement
Movement Caliber 9R86 Instructions Driving system Spring Drive Power reserve Approximately 72 hours Accuracy ±1 seconds per day (±15 seconds per month) - Functions/Specifications
Clasp Three-fold clasp with push button release Water resistance 10 bar Magnetic resistance 4800 A/m (60 gauss) Weight 158.0 g Remarks Screw down crown Screw back See-through back Dual time function with 24-hour display Stop watch Power reserve display function Quick correction function of time difference adjusting to a calendar Caseback with a lion emblem Jewel:50 Anti-metal allergy
-10%
GRAND SEIKO SBGE011G
Specifications
| REF. | SBGE011 |
|---|---|
| Driving system | Spring Drive |
| Caliber No. | 9R66 |
| Case | Stainless steel Case back: Stainless steel and sapphire crystal |
| Glass | High definition dual-curved sapphire crystal |
| Coating | Anti-reflection coating on inner surface |
| Crasp | Three-fold clasp with push button release |
| Accuracy | ±1 per day (±15 seconds per month) |
| Water resistance | 10 bar |
| Magnetic resistance | 4800 A/m (60 gauss) |
| Weight | 158.0 g |
| Case size | Diameter 41.0 mm x Thickness 13.8 mm |
| Remarks | ・Screw down crown ・Screw back ・See-through back ・Jewels: 30 ・Dual time function with 24-hour display ・Power reserve display function ・Quick correction function of time difference adjusting to a calendar ・Power reserve: Over 72 hours In an actual product, the case back direction might be different from the photograph. |
