Seiko Cal. 5666 - 798

Released in 1965, the Cal. 5666 with design code 798 was part of Seiko's domestic market collection. Powered by the 5666 caliber with 35j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-0cfdaba3c375]

Also known as: UFO, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1965

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