IWC SCHAFFHAUSEN Portofino Automatic 37mm 18-karat red gold, alligator and diamond watch. CLICK HERE to buy

Before it reaches your wrist, each of IWC SCHAFFHAUSEN’s timepieces is put through a rigorous 30-test qualification and approval process that lasts several months – this ensures it can withstand exposure to various climates and extreme wear and tear. Known as the “pocket-watch-style wristwatch,” this 37mm self-winding ‘Portofino’ version has an 18-karat red gold case and silver-plated dial that’s studded with 0.07-carats of diamonds. The dark-brown alligator strap is handcrafted by leather specialist Santoni.