A strong theme through this sale is one of evolution, with many modern examples being offered alongside their original executions and custom variations. To add another layer to this we are presenting a number of models which have never been offered for public purchase, these include a 1971 Rolex COMEX 5513 prototype, a 1975 Rolex Military Submariner and two modern Tudor Black Bay’s produced for the Royalty and Specialist Protection unit (RaSP), charged with guarding the Royal Family and Members of Parliament. Each of the above were produced in small batches and were modified to the specifications of the requesting company; something that very seldom occurs today with Rolex and Tudor.