Seiko Cal. 3891 - 951

This Hand-Winding model from 1975 features a 44mm Stainless Steel case. With its 20mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-0638dc826eb6]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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