Seiko Cal. 5654 - 644

This Hand-Winding model from 1974 features a 44mm PVD Black case. With its 18mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-d215f31be58f]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1974

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