Seiko Cal. 7138 - 166

This Hand-Winding model from 1983 features a 34mm Titanium case. With its 20mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-8c89509bd3fe]

Also known as: UFO, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1983

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