Seiko Cal. 6660 - 726

This Spring Drive model from 1980 features a 45mm Titanium case. With its 19mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-783f7f06b832]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1980

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