Seiko Cal. 5691 - 642

This Hand-Winding model from 1981 features a 40mm Titanium case. Powered by the 5691 caliber with 28j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-a8b8c64db97e]

Also known as: Pogue

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1981

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