Seiko Cal. 6623 - 557

The Seiko 6623-557 represents an important milestone in Seiko's 1965 lineup. Powered by the 6623 caliber with 33j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-1e34a74ad801]

Also known as: Crown, Flighty

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1965

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