Seiko Cal. 6639 - 995

This Quartz model from 1968 features a 39mm Gold-Plated case. Powered by the 6639 caliber with 21j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-e1322c7e3b8d]

Also known as: Tuna, Flighty

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1968

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