Seiko Cal. 6637 - 212

The 6637-212 is a sought-after Solar piece from Seiko's golden era. Powered by the 6637 caliber with 22j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-681fbc48259c]

Also known as: Monster, Rally

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1965

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