Seiko Cal. 0731 - 923

The Seiko 0731-923 represents an important milestone in Seiko's 1976 lineup. With its 19mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-92a7073caddb]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1976

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