Seiko Cal. 6640 - 876

This Solar model from 1973 features a 39mm Titanium case. With its 19mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-aa94718a98f9]

Also known as: Rally, Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1973

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