Seiko Prospex – Marinemaster 1968 Heritage Diver’s Automatic 42.6mm HBF001

Description

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: 14.1 mm
  • Diameter: 42.6 mm
  • Lug-to-lug: 49.3 mm

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 mm

Other Details

Water Resistance: 300 m / 1000 ft diver’s

Magnetic Resistance: 4,800 A/m

Features:

• • Unidirectional rotating bezel
  • Screw-down crown
  • Screw case back