Seiko Cal. 5644 - 561

This Spring Drive model from 1982 features a 36mm Stainless Steel case. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-6cec31782080]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1982

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