Seiko Cal. 6660 - 821

This Spring Drive model from 1978 features a 35mm PVD Black case. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-cc3049ee0208]

Also known as: Turtle, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1978

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