Seiko Cal. 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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