Seiko Cal. 0731 - 887

The Seiko 0731-887 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-21fa1ecf7702]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1971

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