Seiko Cal. 4590 - 906

Seiko 4590-906

The 4590-906 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-8a3b76b940d0]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
12.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
35j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1973

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