Seiko Cal. 6660 - 325

This Quartz model from 1976 features a 45mm PVD Black case. Powered by the 6660 caliber with 23j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-2b53f743d992]

Also known as: World Timer, Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1976

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