Seiko Cal. 6646 - 640

This Solar model from 1969 features a 40mm Gold-Plated case. With its 21mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-d01d750f5463]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1969

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