Seiko Cal. 6639 - 603

The 6639-603 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6639 caliber with 33j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-5b2d8fc86342]

Also known as: Shogun, Panda

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1977

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