Seiko Cal. 0731 - 688

The Seiko 0731-688 represents an important milestone in Seiko's 1965 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c567d6f77552]

Also known as: Panda, Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1965

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