Seiko Cal. 6639 - 567

The 6639-567 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6639 caliber with 22j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-910edcf10ed8]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

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