Seiko Cal. 6379 - 831

This Spring Drive model from 1972 features a 42mm Titanium case. Powered by the 6379 caliber with 30j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-a5e1c07122bd]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1972

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