Seiko Cal. 6652 - 638

Released in 1969, the Cal. 6652 with design code 638 was part of Seiko's domestic market collection. Powered by the 6652 caliber with 26j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-85803cca352f]

Also known as: Crown, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1969

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