Seiko Cal. 6223 - 377

The Seiko 6223-377 represents an important milestone in Seiko's 1967 lineup. Powered by the 6223 caliber with 28j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-0913b7ba674f]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1967

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