Well, you already have the date wheel (1500) and the setting lever (1109) so unless those are damaged, I'm not sure why you would need to replace them. The click spring (1105) is unrelated to the date system.
But if the date corrector )1530) is missing or broken it should be replaced. Note that there is an updated date indicator driving wheel that should be installed (1564) and like the date indicator guard as well (1554)...if your watchmaker can't get these parts, you can consider taking it to a watchmaker who has access to parts directly from Omega, rather than you having to look for the parts for your watchmaker. It's the watchmaker's job to find these...
Cheers, Al
Click to expand...