Seiko Cal. 5651 - 839

This Hand-Winding model from 1988 features a 40mm Titanium case. Powered by the 5651 caliber with 31j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-ca870367edb1]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1988

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