Seiko Cal. 4430 - 592

The 4430-592 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4430 caliber with 34j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-1278d6f9c819]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1972

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