Seiko Cal. 3831 - 608

This Spring Drive model from 1987 features a 41mm PVD Black case. Powered by the 3831 caliber with 32j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-ca965c4b9bdc]

Also known as: UFO, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1987

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