I sold my 422 over a year ago for $6900. $6500 should be pretty easy to achieve for a minty pre-owned 422.
I've seen them listed on watchrecon for under $6000 which is a very good deal and seems to be around 372 pricing. Which there used to be a much wider margin between the 2.
A bit more watch technically than 372 obviously with the power reserve on the caseback, second hand reset, sapphire and subseconds hand. Perhaps, not as popular as the 372 might be why the prices are down? And some are unloading watches to fund this years SIHH Novelties.
The 372, 422 and even the 423
are good values in the current market.
Matt aka "MattyMac"...on the Emerald Coast of Florida