Seiko Cal. 6660 - 742

The 6660-742 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-bac36aee1a07]

Also known as: Turtle, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1983

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