Seiko Cal. 4432 - 633

The Seiko 4432-633 represents an important milestone in Seiko's 1971 lineup. Powered by the 4432 caliber with 22j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-e28a63312f28]

Also known as: Shogun, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1971

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