Seiko Cal. 4581 - 647

Seiko 4581-647

The 4581-647 is a sought-after Solar piece from Seiko's golden era. Powered by the 4581 caliber with 20j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-a63de9cf1ee0]

Also known as: Goldfeather, Navigator

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
11.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1996

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