Seiko Cal. 7031 - 336

The Seiko 7031-336 represents an important milestone in Seiko's 1978 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a5b672fdd0b7]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1978

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