Won't happen for the very simple reason that there are far fewer of them. The sea dweller was made in much larger numbers than the cal. 321 speedmaster. I've given this some thought - the cal. 321 was made in relatively small numbers - ~40,000 were installed in many different models over a period of over 20 years. The speedmaster that carried the 321 was produced and sold over about 10 years so I would say less than 20,000 of these movements made it into speedmasters with the vast majority of these being installed in the "twisted lug" case references - 105.012 and 145.012. I would guesstimate there were probably 5-10,000 straight lug speedmasters sold with the majority of these being 2998-3 through 105.003. That leaves maybe 1-2,000 for 5 case references - 2915-1, 2915-2, 2915-3, 2998-1 and 2998-2 and furthermore, the number of these 5 case references that survive over 50 years later with all the correct parts - dial, hands, bezel and appropriate serial number on movement for these 5 case references is probably a few hundred at the high end so if anything these watches are UNDERvalued rather than OVERvalued.
Look at chron24 right now - there is a single 2998-1 or -2 there and it doesn't have the original bezel and there are 2 2915s one has many wrong parts and both have modern bezels. Meanwhile there are over 20 rolex double red sea dwellers for sale.
Here's another one - how many 2998-1 and -2 watches have been auctioned off at Antiquorum? A grand total of 4 - and only 1 of the 4 had the correct base 1000 bezel. That one wasn't in great shape either and also had the chocolate dial and sold for $22,000 in a non-omegamania auction. And BTW, AQ has auctioned off over 60 double red sea dwellers!
Click to expand...