Seiko Cal. 4590 - 636

Seiko 4590-636

The 4590-636 is a sought-after Automatic piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-ea2701d72895]

Also known as: Bullhead, Sea Horse

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
39mm
Case Thickness
8.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Cream
Jewels
28j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1971

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