Seiko Cal. 3831 - 904

This Hand-Winding model from 1980 features a 41mm Titanium case. Powered by the 3831 caliber with 29j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-341d20f17bd0]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1980

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