Seiko Cal. 5281 - 631

The Seiko 5281-631 represents an important milestone in Seiko's 1968 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-fd6e965c3ea2]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1968

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