Seiko Cal. 7017 - 239

The 7017-239 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-8da656c0c806]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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