ZENITH Defy Double Tourbillon El Primero 9020 46mm Watch necklace The 42mm case houses a

The 42mm case houses a black dial with black Swiss Super-LumiNova accents and a date window

It is equipped with a silicon balance-spring and innovative non-magnetic components that make this calibre more than 10 times more resistant to magnetic fields than the ISO 764 standard

Its timeless design ensures it remains a cherished addition to your jewellery collection for years to come

keeping time ticking

ZENITH Defy Double Tourbillon El Primero 9020 46mm Watch necklace The 42mm case houses aA limited edition of 10 pieces, the DEFY 21 Double Tourbillon Sapphire is crafted in a 46mm transparent sapphire case showing the 1 100th of a second chronograph with a 60 second tourbillon driving the time and a 6 second tourbillon driving the chronograph in a special "starry sky" movement decoration.