Seiko Cal. 5644 - 353

This Spring Drive model from 1977 features a 43mm Titanium case. It features a Burgundy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-c94c430b76b9]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1977

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