Seiko Cal. 6371 - 683

This Spring Drive model from 1975 features a 45mm Hardlex-Coated Steel case. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-59a31e778d5c]

Also known as: Pogue, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1975

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