Seiko Cal. 6331 - 775

The Seiko 6331-775 represents an important milestone in Seiko's 1991 lineup. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-fe7e935b1bdb]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1991

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