Seiko Cal. 6635 - 223

The 6635-223 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6635 caliber with 21j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-a24987e46dfc]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1993

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