Grand Seiko Spring Drive Manual Winding SBGY007G

Grand Seiko Spring Drive Manual Winding SBGY007G.

SPECIFICATIONS

Exterior
Case Material : Stainless steel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 38.5mm × Thickness 10.2mm
Band Material : leather
Clasp type : Three-fold clasp with push button release

Movement

Caliber no. : 9R31    Instructions
Power reserve : Approx. 72 hours(3 days)
Accuracy : ±1 second per day / ±15 seconds per month (average)

 

 

Functions

Water resistance : Splash Resistant
Magnetic resistance : Equipped
Weight : 68.0 g
Other details / Features :
  • ・30 jewels
  • ・Case back with lion emblem
  • ・Power reserve display
  • ・Screw case back
  • ・See-through case back
  • ・Stop seconds hand function

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