Seiko Cal. 6663 - 227

Released in 1968, the Cal. 6663 with design code 227 was part of Seiko's domestic market collection. Powered by the 6663 caliber with 18j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-645583b117a3]

Also known as: UFO, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1968

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