Seiko Cal. 4578 - 356

Seiko 4578-356

The 4578-356 is a sought-after Solar piece from Seiko's golden era. Powered by the 4578 caliber with 29j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-29a9c3e8dad6]

Also known as: Monster, Helmet

Specifications

Movement
Solar
Case Material
Titanium
Case Width
37mm
Case Thickness
15.6mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
29j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1974

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