Seiko Cal. 3865 - 939

This Automatic model from 1974 features a 41mm Titanium case. Powered by the 3865 caliber with 18j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-5524735534e0]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1974

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