Can anybody help.
I'm a novice to watch repairs therefore my experience is limited.
I have taken apart my fathers old Poljot 2415 automatic watch (bought around 1969/1970) and has been in my drawer since my father died in 2011, it did not run so i thought 'a nice little project for me, but i think another novice has been at it in years gone by. I say that because i found a strange component just 'floating' around within the mechanism which i eventually tracked down as being one of the drive dogs from inside the coupling clutch which i took apart and found 3 drive dogs inside the mechanism instead of four. Problem of what the 'floating' part was now solved. As i continued with the strip down i was confused which is where i now need help; the balance cock has a jewel in a brass/bronze holder (chaton?), an end stone or cap jewel (are these terms interchangeable?) and the retaining spring making up what i believe is the shock protection device, so far so good,but in the main plate the shock protection device is the same set up but there is no cap jewel. My question is, should there be a cap jewel? and if so,how and where would i get hold of one and what dimensions? can i assume it would be the same as the balance cock cap jewel?
The photo shows the spring, cap jewel and jewel in brass holder.
Any advice/help at this stage would be appreciated.
I'm sure i will need more help as the project moves on.
Thanks in advance