Seiko Cal. 0728 - 958

This Spring Drive model from 1969 features a 40mm Stainless Steel case. With its 18mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-a9518c1c5140]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1969

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