Seiko Cal. 6661 - 276

The 6661-276 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6661 caliber with 18j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-6c71b68fa466]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1972

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