Seiko Cal. 6687 - 523

This Solar model from 1983 features a 42mm PVD Black case. With its 18mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-f8fc3fc29ec8]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1983

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