Seiko Prospex Marinemaster 1968 Heritage Diver's 42.6 MM Automatic Watch HBF001J1

Movement

Caliber Number

8L45

Movement Type

Automatic with manual winding

Precision

+10 to -5 seconds per day

Power reserve

Approx. 72 hours(3 days)

Jewels

35

Functions

28,800 vibrations per hour (8 beats per second)

Stop second hand function

Date display

Case/Band

Case Material

Stainless steel (Bezel: Stainless steel with ceramic display)

Case Size

Thickness:14.1mm

Diameter:42.6mm

Lug-to-lug:49.3mm

Crystal

Dual-curved sapphire crystal

Crystal Coating

Anti-reflective coating on inner surface

LumiBrite

LumiBrite on hands, index(es) and bezel

Clasp

Three-fold clasp＆push button release, solid & slide adjuster

Distance between lugs

20

Other Details

Water Resistance

300m / 1000ft diver's

Magnetic Resistance

4,800 A/m

Features

Unidirectional rotating bezel

Screw-down crown

Screw case back