Universal Geneve Polerouter Radium – tropical 20357/4 – Gerald Genta – ca. 1956

Gerald Genta”s all-time classic. 

Late 1950s Universal Geneve Polerouter Radium.

This example is a tropical 20357/4 made from 1956-1959 – no lume dial, no date – cal. 215 Microrotor – this exact example’s serial number is also listed in the „polerouter reference table” (←LINK)
The ref. 20357/4 is actually a rarer version of the “broad arrow”.
The radium lume was removed from the fluted bezel insert.

This timeless, elegant and clean design is one of Gerald Genta’s first works, when he was in his 20s. Showcasing how a simple, retrained design can stand decades of different tastes and fashion. These Polerouters are definitely on our all-time favorite watches list. 

Can a vintage watch collection ever be complete without a Polerouter?
Wrist size in the pictures: 17.5 cm
Serviced movement.



*Margin VAT. The item is differential taxed according to § 25a UStG (German tax law). You will therefore receive an invoice WITHOUT VAT shown separately.

You do not have to pay any additional VAT or import charges if you buy from an EU country! Outside the EU: The item may be subject to import VAT, customs duties and/or sales tax, the buyer is responsible for these costs. Please contact us for an estimate if you are unsure.


  • high quality Watchurbia watch box
  • certificate incl. photos
  • service report
  • warranty certificate


33.5 mm measured without crown


12 months*

*You can find the warranty conditions under this LINK

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