Depends how you look at it. I have spent the value of a 1960's Certina DS many times over servicing and repairing it over the last couple of decades. Totally w

Depends how you look at it. I have spent the value of a 1960's Certina DS many times over servicing and repairing it over the last couple of decades. Totally worth it; it was my grandfather's favourite watch. (Idea being - if you have some sort of emotional attachment to a watch, it doesn't really matter all that much what financial value the rest of the world puts on it.) I would guess collectors of these watches feel much the same way - they are maintaining a bit of history, not a watch. Besides, a lot of them probably do routine CLA (Clean, Lube, Adjust) on their own; it is surprisingly simple given a very modest investment in tools - and guess how good it feels when you've successfully dismantled and reassembled your watch - and it still works...)