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Grand Seiko Heritage SBGR317
An Automatic Mechanical Timepiece in a 40mm Case
The SBGR317 sports a black dial, giving it 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 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.
About Grand Seiko
Grand Seiko was established in 1960 with the mission to create "ideal" watches with standards of precision, durability and beauty that would lead the world. Grand Seiko watches are a reflection of Japanese aesthetics and are notable for the purity, simplicity and subtlety of their designs. Grand Seiko calls it “functional beauty,” a style that does not interfere with the reading of the time, but enhances it with harmonious case lines and uncluttered, easy-to-read dials. Key to the design are polished surfaces that reflect rays of light. Since ancient times, Japanese people have admired the subtle gradations between light and shadow in nature. With that inspiration, Grand Seiko uses a simple case design composed of a flat plane and curved line that respond to the movement of light. Grand Seiko creates this hard-edged, flat-surfaced case through a process called Zaratsu, giving the case a mirror-like smoothness where light and shadow play.
Grand Seiko makes watches with three different kinds of movements: mechanical, quartz, and Spring Drive. Spring Drive is a technical breakthrough invented by Seiko that combines the best of mechanical and quartz technologies. It’s an automatic watch that gives quartz accuracy without using a battery. No other watch company has this technology. It is a testament to the watchmaking savvy of a firm that has made mechanical watches since 1895.
Case size: 40mm
Case material: Stainless steel
Case back: Sapphire crystal
Movement type: Automatic
Movement no.: 9S65
Power reserve: Approx 72hrs
Dial: Black dial with stainless steel hands and indices
Glass: Dual-curved sapphire crystal with anti-reflective coating
Water resistance: 10ATM
Strap type: Metal
Strap material: Stainless steel
Buckle: 3-fold clasp with push button release
Features: Date, stop second hand function
Warranty: 3 years