Seiko Prospex Sea 1965 Heritage Diver's 40 MM Automatic Watch SPB453J1

Caliber Number: 6R55

Movement Type: Automatic with manual winding

Precision: +25 to -15 seconds per day

Power reserve: Approx. 72 hours(3 days)

Jewels: 24

Stop second hand function

Case Material: Stainless steel

Case Size

Thickness:13.0mm

Diameter:40.0mm

Lug-to-lug:46.4mm

Crystal: Curved 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

Water Resistance: 300m / 1000ft diver's

Magnetic Resistance: 4,800 A/m

Weight: 168.0g

Features

Unidirectional rotating bezel

Screw-down crown

Three-fold clasp with secure lock

Screw case back