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Grand Seiko Sport Collection
USD $9,600
Mastershop Model
Available to GS9 Club Members Only


A tough, professional diver’s watch made the Grand Seiko way

Designed for saturation diving up to a depth of 600m, Grand Seiko’s professional diver’s watch SBGH255 features a tough, high-intensity-titanium case construction that is impervious to penetration from gas, air, and water. The watch also features a high degree of anti-magnetism due to its pure iron dial, and there’s a crown at four o’clock for safety and comfort. The grooves on the rotating bezel ensure a firm grip even with thick diving gloves, and the case, stem, and crown are designed for simple servicing. Even the bezel has a four-part design that makes for easy disassembly and re-assembly. The dial’s mirror-polished dot pattern is reminiscent of air bubbles rising to the surface during a dive, and luminous markers ensure legibility, a critical feature of any serious diver's watch. This professional diver's model utilizes Caliber 9S85, a high frequency "Hi-Beat" movement with a beat rate of 36,000 bph, and a precision rating of +5 to -3 seconds a day.

Case Material : High-Intensity Titanium
Case Diameter : 46.9mm
Case Thickness : 17mm
Case Length : 50.8mm
Lug Width : 23mm
Crown : Screw Down
Strap/Bracelet : High-Intensity Titanium w. expansion clasp
Crystal : Sapphire
Caseback : High-Intensity Titanium
Caliber : 9S85
Type : Hi-Beat 36000
Power Source : Automatic
Jewels : 37
Accuracy : +5 to -3 seconds per day (when static)
Duration : 55 Hours
Features : Time, Date
Water Resistance : 600m
Magentic Resistance : 10,000 A/m
A high-performance diver's watch powered by a Hi-Beat movement.
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