Seiko Cal. 5637 - 583

This Hand-Winding model from 1978 features a 42mm PVD Black case. With its 22mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-16a77b311e69]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1978

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