Seiko Cal. 5660 - 717

The Seiko 5660-717 represents an important milestone in Seiko's 1981 lineup. It features a Silver dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-477c9b9d3369]

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1981

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