Seiko Cal. 6331 - 881

The Seiko 6331-881 represents an important milestone in Seiko's 1967 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-cd3a3fa20bd3]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1967

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