Seiko Cal. 4573 - 303

The Seiko 4573-303 represents an important milestone in Seiko's 1982 lineup. Powered by the 4573 caliber with 20j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-95647ec8484e]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1982

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