Seiko Cal. 0731 - 737

The Seiko 0731-737 represents an important milestone in Seiko's 1980 lineup. With its 19mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-e25046cc8389]

Also known as: Bullhead, Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1980

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