Seiko Cal. 5646 - 431

This Spring Drive model from 1982 features a 35mm Titanium case. With its 19mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-e1eb308fa6c0]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1982

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