Seiko Cal. 7197 - 636

This Hand-Winding model from 1970 features a 37mm Stainless Steel case. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-87144f23ebfc]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1970

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