Grand Seiko Sport Blue Automatic Spring Drive 3-Day GMT SBGE255
Designed for underwater adventures, the Grand Seiko Sport collection is the preferred choice of todayÕs avid explorer, demanding function and form in equal measures.
Presented on a sleek stainless steel case featuring a navy bezel, the uncluttered dial displays time using classic baton watch markers and date display at 4 o'clock.
Exterior
Case Material : Stainless steel with ceramic bezel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Lumi Brite : Lumibrite on hands and indexes
Case size : Diameter 40.5mm _ Thickness 14.7mm
Clasp type : Three-fold clasp with push button release
Movement
Calibre 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 : 20 bar
Magnetic resistance : Equipped
Weight : 172.0 g
Other details / Features:
24-hour hand (dual time display function)
30 jewels
Calendar-linked time difference adjustment function
Case back with lion emblem
Date display
Power reserve display
Screw case back
Screw-down crown
Stop seconds hand function
Calibre 9R66:
In 2006, just two years after the completion of Calibre 9R65, Grand Seiko's first 9R Spring Drive movement with GMT function, the Calibre 9R66, was unveiled.
"GMT" stands for Greenwich Mean Time, and uses a 24-hour hand (GMT hand) as the fourth hand on the watch dial in addition to the hour, minute and second hands.
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