Seiko Cal. 7157 - 104

This Hand-Winding model from 1990 features a 38mm Titanium case. With its 22mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-a2274885ed06]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1990

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