Seiko Cal. 0731 - 791

The Seiko 0731-791 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ff644b346f75]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1966

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