Seiko Cal. 6660 - 856

The Seiko 6660-856 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-81286fc41bb7]

Also known as: Sea Horse, Crown

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1966

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