Seiko Cal. 0731 - 728

The Seiko 0731-728 represents an important milestone in Seiko's 1978 lineup. With its 19mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-122348613354]

Also known as: Monster, UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1978

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