Why not make lemonade out of your lemons?
You can pickup a basic set of watchmaking tools (screwdrivers, tweezers, movement stand, rubber ball caseback opener & 3x loupe) for about 100 quid. Find a youtube overhaul video for 1 of your rep movements (most are either ETA or Asian clones of same) & take a shot at watch repair.
There are a number of watch repair forums, including RWG, where you can ask questions & receive guidance along the way. If you fail, worst case, you are out 100 quid & still have watches with issues. But if you succeed, you have begun to learn an enviable new skill & have pride of having done it yourself. More importantly, once you gain a bit of experience, you may find that you enjoy repairing (and wearing) those mechanical watches -- that no longer have issues.