sentences:  At the BaselWorld watch and jewellery show 2017, Rolex introduced an enlarged Sea-Dweller model featuring a date magnifier on a redesigned watch crystal and an updated automatic movement (Calibre 3235).Its reference number is 126600.The Rolex Sea-Dweller 126600 watch case has a diameter of  mm, 3.0 mm larger than previous generations of the Sea-Dweller.