This is how you restock for the holidays...

Step 1 - Buy your watch in October from an online dealer for €4990:

Serial 3028523
https://www.horare.com/collections/watches/products/1950s-tissot-navigator-worldtime-4002-1


Step 2 - Resell same watch in November for €6500:


https://www.shucktheoyster.com/portfolio/tissot-worldtimer-vintage-watch-4002-1-rare/

Come on that better movement picture is worth €1510

£ucktheoyster has been doing this for years.