Seiko Cal. 7017 - 310

The 7017-310 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7017 caliber with 17j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-07f5b7abc1ff]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1968

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