Grand Seiko
Grand Seiko Heritage Watch (SBGR317G)
FEATURES
An automatic mechanical in a new 40mm case design
A black dial gives a more compact look. The strong three-dimensional indexes are tightly arranged to the outside of the calendar frame, creating harmony with the presence of the case, balance and a stately profile. The case design has a sense of presence and luxury following the standard design of Grand Seiko.
The caliber 9S65 "Mechanical automatic winding 3 Days" lasts 72 hours at maximum winding, adopting the latest hydraulic spring and escapement (MEXT) by MEMS method, creating greater stability and improved accuracy. The back of the see-through case, allows the owner to enjoy the precise movement.
This model combines the presence and wearability in a well-balanced manner with high legibility. This model can endure generations as a lifetime timepiece that carves important moments together.
Case Material : Stainless steel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 40mm × Thickness 13mm
The perimeter of Band : 195mm
Clasp type : Three-fold clasp with push button release
Movement
Caliber no. : 9S65 Instructions
Movement Type : Automatic with manual winding capacity
Power reserve : Approx. 72 hours(3 days)
Accuracy : +5 to -3 seconds per day (when static) / +10 to -1 seconds per day (normal usage accuracy)
Functions
Water resistance : 10 bar
Magnetic resistance : Equipped
Other details / Features :
・35 jewels
・Case back with lion emblem
・Date display
・Screw case back
・Screw-down crown
・See-through case back
・Stop seconds hand function
