Seiko Cal. 0717 - 445

Seiko 0717-445

The 0717-445 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0717 caliber with 17j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-7a54e1d18400]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
15.0mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
90m
Dial Color
Green
Jewels
17j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1991

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seikata-wm-7a54e1d18400