Seiko Cal. 4550 - 454

The Seiko 4550-454 represents an important milestone in Seiko's 1989 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d765c717712d]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1989

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