Seiko Cal. 7139 - 387

This Spring Drive model from 1992 features a 39mm Titanium case. With its 19mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-a3056c2059b1]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1992

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