Seiko Men's Prospex 1968 Diver Watch with Black Dial & Black Silicone Strap - SPB087

Caliber Number: 6R15

Movement Type: Automatic with manual winding

Precision: +25 to -15 seconds per day

Power reser: Approx. 50 hours

Jewels: 23

Functions: Stop second hand function, Date display

Case Material: Stainless steel (super hard coating) with stainless steel bezel

Case Size: Thickness: 12.7mm, Diameter: 44.0mm

Crystal: Sapphire crystal

Crystal Coating: Anti-reflective coating on inner surface

LumiBrite: LumiBrite on hands and index(es)

Band Material: Silicone

Distance between lugs: 20

Water Resistance: 200m / 660ft diver's

Weight: 117.0

Features: Screw case back, Unidirectional rotating bezel, Screw-down crown