Seiko Cal. 3811 - 359

This Hand-Winding model from 1983 features a 40mm Two-Tone case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ffa3aa735432]

Also known as: Bullhead, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1983

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