Seiko Cal. 6645 - 239

Released in 1984, the Cal. 6645 with design code 239 was part of Seiko's domestic market collection. Powered by the 6645 caliber with 20j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-f800c84880d7]

Also known as: UFO, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1984

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