Seiko Cal. 4551 - 554

The Seiko 4551-554 represents an important milestone in Seiko's 1981 lineup. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-c786d7968746]

Also known as: Sumo, Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1981

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