Please consider donating to help offset our high running costs.
Update:
I took the watch in for a service, and got some good and bad news. The good news was that the crown stem was NOT worn out, and that it was, as I thought, a question of pressing the button on the movement and inserting the crown. I was also told, that the movement was in close to perfect condition: none of the screws were stripped, there was no dust, oils or rust present and there was no sign of any water or humidity ever having entered the movement.
The "bad" news was that in some positions the movement was gaining a lot of time 60-84 seconds per day, and in others only +/- 1-2 seconds. The watchmaker told me this may be solved by applying proper lubrication and that they would have to keep the watch for a week or so to make sure there is nothing else wrong with it.
I'm hoping that they'll be able to just clean it a little and lube it up to get it ticking nice and steadily, and hopefully not costing me too much money!
==============================
One somewhat strange thing, when I asked him about the crystal, he said that he believes it best to replace old crystals with new ones, and that they would most likely try and source a new crystal: is this just him trying to charge me more money? There is nothing wrong with the crystal (other than that it was installed sideways at some point so the little Omega logo is sideways). I think he said something about the plastic ageing a certain way or something.... I wasn't too convinced, but to be fair, he's the expert. Either way, I just wanted to ask you guys' opinion on this.
To clarify, they are fully disassembling the watch and movement, cleaning it, and then reassembling, oiling, and adjusting, right?
If all they are doing is adding lubrication, that won't solve anything and is very bad practice to add lubricants to a watch that hasn't been fully stripped and cleaned first. Simple lubrication is not going to solve that sort of positional variation - it will require proper adjustments being made (things like manipulation of the balance spring, spacing of regulating pins, perhaps posing of the balance).
And unless the crystal has a known fault, there's no real reason to replace it.
Cheers, Al