Rolex designed the Submariner model with the sea and the waters in mind. Perfect for divers, or those with a boat, this watch is a staple for those who love the water. Older Model. 40mm stainless steel case, 18K yellow gold unidirectional rotatable bezel with blue disc, blue dial, and stainless steel and 18K yellow gold Oyster bracelet with folding clasp. Water resistant to 300 meters (1000 feet).