Seiko Cal. 3817 - 446

This Automatic model from 1979 features a 36mm Titanium case. Powered by the 3817 caliber with 25j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-e3c7b983fcb4]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1979

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