Seiko Cal. 0731 - 380

The Seiko 0731-380 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-c14d6466b0c0]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1975

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