Day-Date 40 rolex-submariner in 18 ct yellow gold

in 18 ct yellow gold Open case back with sapphire crystal

used by Rolex for the first time on this watch

and signature Quilts® interior

2mm rose gold cap

quickly and securely

Day-Date 40 rolex-submariner in 18 ct yellow goldFluted bezel The Rolex fluted bezel is a mark of distinction. Originally, the fluting of the Oyster bezel had a functional purpose: it served to screw the bezel onto the case helping to ensure the waterproofness of the watch. It was therefore identical to the fluting on the case back, which was also screwed onto the case for waterproofness, using specific Rolex tools. Over time, the fluting became an aesthetic element, a genuine Rolex signature