Across town, Phillips has a few 3700 options in their upcoming Geneva Watch Auction, including a 1978 3700 https://www.arelojes.com/Coleccion/richard-mille/ in steel with a tropical dial, https://www.awatchshop.uk.com/Collection/hublot/ but I opted not to include any of them in my picks. But this Nautilus is different – it absolutely sings in person and on the wrist. It has https://www.auredk.com/Kollektion/panerai/ an estimate of CHF 200,000 - 400,000.