Seiko Cal. 6633 - 564

The Seiko 6633-564 represents an important milestone in Seiko's 1969 lineup. Powered by the 6633 caliber with 28j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-ebaf7e29edd5]

Also known as: UFO, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1969

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