Seiko Cal. 3891 - 635

This Quartz model from 1991 features a 41mm Gold-Plated case. Powered by the 3891 caliber with 27j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-e5155e0be7f7]

Also known as: Helmet, Navigator

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1991

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