Seiko Cal. 6331 - 842

The Seiko 6331-842 represents an important milestone in Seiko's 1977 lineup. Powered by the 6331 caliber with 31j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-89aeb8c41d5e]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1977

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