Seiko Cal. 3814 - 310

This Spring Drive model from 1971 features a 41mm Hardlex-Coated Steel case. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-8353a32eaa22]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1971

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