Seiko Cal. 7187 - 159

This Hand-Winding model from 1977 features a 42mm Hardlex-Coated Steel case. With its 18mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-e00c0d39eba7]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1977

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