Seiko Cal. 5644 - 722

This Hand-Winding model from 1986 features a 36mm Titanium case. With its 19mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-79026e48dcac]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1986

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