Seiko Cal. 5660 - 178

The Seiko 5660-178 represents an important milestone in Seiko's 1984 lineup. It features a Green dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-bee60ebd4d49]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1984

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