The cases are similar to Rolex models and often are sold with Rolex's famous Oyster case. During the period when both Rolex and Tudor used acrylic crystals, the Tudor and Rolex models would often share a similar depth rating.Many Tudor models up to the 1990's were sold with Rolex signed bracelets and crowns also.The Tudor line can be traced all the way back to the beginning of the 20th Century. The earliest Tudor I have owned dated to the 1930's and used a caliber 59 movement, also used in the Canadian market Rolex's.
