42MM Sky Dweller 326933 (2020) Pre-Owned RolexThe Rolex Sky Dweller 326933 is the 42mm Sky Dweller in yellow Rolesor, combining an Oystersteel case with 18k yellow gold elements. This is the previous generation reference. The Sky Dweller is definitely a unique watch as Rolex patented many items about its design and movement, which made a big impact in the timepiece industry when it was first released. The Sky Dweller is Rolex's most complex regular production model, featuring an annual calendar