Seiko Cal. 5661 - 607

This Spring Drive model from 1980 features a 43mm PVD Black case. With its 21mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-6ef4ea2b99c6]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1980

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