An innovative Spring Drive GMT dressed in classic attire
It is a model with a classic design and ultimate function. Designed with a simple 24 o'clock scale, the GMT indicator creates stark legibility without breaking the formal expression.
This model incorporates Grand Seiko’s unique Spring Drive caliber, which combines the motive force of a mainspring with the high precision of a quartz watch, while also offering the GMT function that the international traveler needs to ensure that the accuracy of the time shown is not compromised when the time zone is changed.
Exterior
- Case Material : Stainless steel
- Glass Material : Box shaped sapphire
- Glass Coating : Anti-reflective coating on inner surface
- Case size : Diameter 40.2mm × Thickness 14mm
- Band Material : Crocodile leather
- The perimeter of Band : 187mm
- Clasp type : Three-fold clasp with push button release
Movement
- Caliber no. : 9R66 Instructions
- Movement Type : Spring Drive
- Power reserve : Approx. 72 hours(3 days)
- Accuracy : ±1 second per day / ±15 seconds per month (average)
Functions
- Water resistance : 10 bar
- Magnetic resistance : Equipped
- Weight : 93.0 g
- Other details / Features :
- ・24-hour hand (dual time display function)
- ・30 jewels
- ・Calendar-linked time difference adjustment function
- ・Case back with 6 screws
- ・Case back with lion emblem
- ・Date display
- ・Power reserve display
- ・See-through case back
- ・Stop seconds hand function