Seiko Cal. 4559 - 720

Seiko 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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seikata-wm-7438b695d91f