Seiko Cal. 3851 - 307

This Spring Drive model from 1972 features a 41mm Gold-Plated case. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ab959d3f413c]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1972

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