And that's how I ended up with this funky chunk of cool '70s design. It's a Model 50, measuring 46mm https://www.watchesx.co.uk/Collection/cartier/ wide with a left-side crown, an electronic movement that uses a battery to wind the mainspring, and a special diaphragm that allows the watch https://www.xhorloge.com/product-categorie/audemars-piguet/ to indicate depth underwater. Sure, it's huge, but https://www.xhorloge.com/product-categorie/tudor/ think of what it offered back in the day – two crucial dive functions in one wrist-worn tool.