Seiko Prospex Sumo 45 MM Stainless Steel Automatic Diver's Watch - SPB101J1

Caliber Number: 6R35

Movement Type: Automatic with manual winding

Precision: +25 to -15 seconds per day

Power reserve: Approx. 70 hours

Jewels: 24

Stop second hand function

Date display

Case Material: Stainless steel

Case Size

Thickness:12.9mm

Diameter:45.0mm

Lug-to-lug:52.6mm

Crystal: Sapphire crystal

LumiBrite: LumiBrite on hands, index(es) and bezel

Clasp: Three-fold clasp with secure lock , push button release with extender

Distance between lugs: 20

Water Resistance: 200m / 660ft diver's

Weight: 188.0g

Unidirectional rotating bezel

Screw-down crown

Screw case back