Seiko Prospex SPB207 Limited Edition Green Sumo Automatic hamlton A typical Japanese scale pattern

A typical Japanese scale pattern is used on the surface of the dial

Vibration: 36

Automatic BALL Manufacture caliber RRM7337-C

Redefining atomic timekeeping with a turbine inspired bold and powerful timepiece

Seiko Prospex SPB207 Limited Edition Green Sumo Automatic hamlton A typical Japanese scale patternCaliber Number 6R35 Movement Type Automatic with manual winding Accuracy +25 to 15 seconds per day Duration Approx. 70 hours Exterior Case Material Stainless steel (super hard coating) Crystal Sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite Lumibrite on hands, indexes and bezel Clasp Three fold clasp with secure lock , push button release with extender Other Details Water Resistance 200m 660ft diver's Case Size