Seiko Cal. 6668 - 721

This Quartz model from 1974 features a 35mm Two-Tone case. Powered by the 6668 caliber with 23j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-1936757054a6]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1974

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