Seiko Cal. 6660 - 142

The Seiko 6660-142 represents an important milestone in Seiko's 1976 lineup. Powered by the 6660 caliber with 23j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-58b4f07055ab]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1976

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