Seiko Cal. 4559 - 720

The 4559-720 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4559 caliber with 28j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-7438b695d91f]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1990

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