Seiko Cal. 6660 - 187

The 6660-187 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6660 caliber with 21j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-751c9cdcb360]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1969

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