Question: what are the most collectible watches?
Answer: Blancpain Fifty Fathoms. Born in 1953 the Fifty Fathoms was made to withstand depths few people, let alone watches, had been to at the time. ... 
Omega Speedmaster Moonwatch. ... 
Breitling Premier B01. ... 
Patek Philippe Nautilus. ... 
Tudor Heritage Black Bay. ... 
Vacheron Constantin Traditionnelle.