Seiko Cal. 6639 - 329

The 6639-329 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6639 caliber with 21j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-df2a6d026bc3]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1998

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