Seiko Cal. 7017 - 520

The Seiko 7017-520 represents an important milestone in Seiko's 1993 lineup. Powered by the 7017 caliber with 21j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-b708b8c209c6]

Also known as: Monster, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1993

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