Seiko Cal. 5645 - 441

This Quartz model from 1975 features a 42mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-1c72cc8305da]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1975

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