Seiko Cal. 0717 - 531

Seiko 0717-531

The 0717-531 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0717 caliber with 23j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-b418c8903761]

Also known as: UFO, World Timer

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1975

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seikata-wm-b418c8903761