Seiko Cal. 6668 - 539

The Seiko 6668-539 represents an important milestone in Seiko's 1985 lineup. It features a Silver dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-05203d6460c7]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1985

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