Seiko Cal. 4590 - 736

Seiko 4590-736

The 4590-736 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4590 caliber with 36j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-39aeb403f2d0]

Also known as: Bullhead, World Timer

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
35mm
Case Thickness
14.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Green
Jewels
36j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1983

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