Seiko Cal. 4553 - 640

The Seiko 4553-640 represents an important milestone in Seiko's 1984 lineup. Powered by the 4553 caliber with 19j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-3f676a49f747]

Also known as: UFO, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1984

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