Seiko Cal. 3881 - 898

This Automatic model from 1969 features a 42mm Titanium case. Powered by the 3881 caliber with 28j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-7b4f2e082c4c]

Also known as: Monster, Navigator

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1969

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