Seiko Cal. 6631 - 773

The Seiko 6631-773 represents an important milestone in Seiko's 1980 lineup. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-9037a176976b]

Also known as: Pogue, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1980

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