Seiko Cal. 0730 - 731

This Hand-Winding model from 1981 features a 44mm PVD Black case. With its 18mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-15fe73322ec2]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1981

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