Seiko Cal. 4435 - 633

The 4435-633 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4435 caliber with 24j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-76d8f3ef5abb]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1971

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