Seiko Cal. 6291 - 557

This Hand-Winding model from 1971 features a 43mm PVD Black case. With its 18mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-cac6c5506b9b]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1971

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