Seiko Cal. 4437 - 198

This Solar model from 1970 features a 45mm PVD Black case. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-913204c3e846]

Also known as: Sumo, Navigator

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1970

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