Grand Seiko SBGY013
GRAND SEIKO SBGY013
Grand Seiko SBGY013 Specifications
Exterior
Case Material Stainless steel
Case Back Silver tone see-through screw with etched Grand Seiko logo
Glass Material Dual-curved sapphire crystal
Glass Coating Anti-reflective coating on inner surface
Band Material Silver tone stainless steel nine-link bracelet
Bezel Material Fixed polished stainless steel
Dial Color Domed and textured ice-white inspired by snow-covered frozen surface of Lake Suwa with 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 Silver tone screw down at 3 o'clock position
Case size Diameter 38.5 mm × Thickness 10.2 mm
Lug to lug 43.7 mm
Band width 19 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 ±15 seconds per month (±1 second per day)
 
Functions / Specifications
Water resistance Splash Resistant
Magnetic resistance Equipped (4,800 A/m)
Functions Hour, minute, second hand
Features
  • 30 jewels
  • See-through screw case back
  • Power reserve indicator
Reference : Grand Seiko SBGY013G
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Grand Seiko SBGY007
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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
Lug to lug 43.7 mm
Clasp type Three-fold clasp with push button release
 
Movement
Caliber no 9R31    Instructions
Movement Type Spring Drive
Driving System Manual winding
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
Reference : Grand Seiko SBGY007G
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