Seiko Sumo Prospex Diver 200m SPB321J1 SPB321

Movement
Caliber Number
6R35
Movement Type
Automatic with manual winding
Precision
+25 to -15 seconds per day
Power reserve
Approx. 70 hours
Jewels
24
Functions
Stop second hand function
Date display
Case/Band
Case Material
Stainless steel (super hard coating)
Case Size
Thickness:13.4mm
Diameter:45.0mm
Lug-to-lug:52.6mm
Crystal
Sapphire crystal
Crystal Coating
Anti-reflective coating on inner surface
LumiBrite
LumiBrite on hands, index(es) and bezel
Clasp
Three-fold clasp with secure lock , push button release with extender
Distance between lugs
20
Other Details
Water Resistance
200m / 660ft diver's
Weight
190.0
Features
Unidirectional rotating bezel
Screw-down crown
Three-fold clasp with secure lock
Screw case back