Seiko Cal. 6661 - 595

Released in 1971, the Cal. 6661 with design code 595 was part of Seiko's domestic market collection. Powered by the 6661 caliber with 28j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-8184fa2cfe5f]

Also known as: Sumo, Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1971

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