Seiko Cal. 6181 - 137

This Solar model from 1988 features a 36mm Titanium case. With its 18mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-922ec0a9b373]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1988

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