Seiko Cal. 3812 - 635

The Seiko 3812-635 represents an important milestone in Seiko's 1981 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-9b890e27395f]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1981

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