Seiko Cal. 7155 - 812

This Hand-Winding model from 1966 features a 39mm Two-Tone case. With its 19mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-78b459758f2f]

Also known as: Sumo, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1966

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