Seiko Cal. 6660 - 831

The Seiko 6660-831 represents an important milestone in Seiko's 1965 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-dce8ed824803]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1965

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