Seiko Cal. 4554 - 643

The Seiko 4554-643 represents an important milestone in Seiko's 1972 lineup. Powered by the 4554 caliber with 33j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-f1c2f7baf767]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1972

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