Seiko Cal. 4423 - 255

The Seiko 4423-255 represents an important milestone in Seiko's 1997 lineup. Powered by the 4423 caliber with 34j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-719b3d31230c]

Also known as: Sumo, Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1997

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