Seiko Cal. 6636 - 211

The 6636-211 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6636 caliber with 20j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-df69f07b2aed]

Also known as: Pogue, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1967

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