Seiko Cal. 5681 - 874

This Hand-Winding model from 1975 features a 40mm Titanium case. With its 22mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-7f6cbdb86ee8]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1975

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