Seiko Cal. 4557 - 443

This Solar model from 1972 features a 44mm Stainless Steel case. Powered by the 4557 caliber with 24j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-2136ee86b7ae]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1972

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