Seiko Cal. 7150 - 136

This Spring Drive model from 1977 features a 42mm PVD Black case. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-1e08fa5a5b63]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1977

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