Seiko Cal. 5644 - 441

This Spring Drive model from 1979 features a 38mm Titanium case. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-65474abd6e98]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1979

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