Seiko Cal. 7017 - 931

The 7017-931 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7017 caliber with 25j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-1e9a255af8eb]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1993

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