Seiko Cal. 3871 - 904

This Kinetic model from 1973 features a 45mm Titanium case. Powered by the 3871 caliber with 25j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-0122b1fbc1eb]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1973

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