Seiko Cal. 6661 - 654

The Seiko 6661-654 represents an important milestone in Seiko's 1978 lineup. Powered by the 6661 caliber with 29j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-96cf21843ff4]

Also known as: Shogun, Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1978

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