ZENITH Defy Double Tourbillon El Primero 9020 46mm Watch necklace It is equipped with a

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

Maximum length: 16 1/2 inches

Article No: 5638493

ZENITH Defy Double Tourbillon El Primero 9020 46mm Watch necklace It is equipped with 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.