Seiko Cal. 6371 - 673

This Spring Drive model from 1979 features a 45mm Hardlex-Coated Steel case. Powered by the 6371 caliber with 33j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-6f9a734d6c10]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1979

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