Seiko Cal. 6661 - 957

The 6661-957 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6661 caliber with 17j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-eec7da96de6e]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1972

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