Grand Seiko Heritage Quartz Black GMT SBGN013

Designed for underwater adventures, the Grand Seiko Sport collection is the preferred choice of todayÕs avid explorer, demanding function and form in equal measures.

Exterior
Case Material : Stainless steel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 40mm _ Thickness 12.2mm
Clasp type : Three-fold clasp with push button release

Functions
Water resistance : 10 bar
Magnetic resistance : Equipped
Weight : 150.0 g

Other details / Features:
24-hour hand (dual time display function)
Calendar-linked time difference adjustment function
Case back with lion emblem
Date display
Screw case back
Stop seconds hand function

Offering the same functionality as the standard Calibre 9F82, Calibre 9F86 is equipped with the first GMT function of Grand Seiko. The quartz watch, redefined to the Grand Seiko Standard. To meet the high standards of Grand Seiko, the 9F quartz movement has enhanced precision and durability, made possible by innovations in every aspect of the movement. This might well be the most advanced quartz movement in the world.

Accuracy
±10 seconds per year

Battery life
Approximately 3 years

Features
- Instant date change mechanism
- Dual time function with 24-hour hand
- Quick correction function of time difference adjusting to a calendar