Bulova 10AK balance cock assembly

[tonydagee]

Hello all. Jubilee weekend here,Let’s hope it stops raining…

I’m scratching my head …disassembled the end stone housing from the balance cock to lubricate and…I’m presented with a domed surface on the inside! I’m wondering if the housing was previously fitted upside down?this is the first time I’ve had a go at this procedure, so grateful for any help, please.

 

[watchweasol]

Hi  Turning an end stone is usually used to remove excessive end shake from the balance. If the watch was working in this configuration its best to return it to the status quo.

[tonydagee]

Thanks for your help!

No information about the history of the watch whether it was running.I’ll reassemble in the conventional way and take it from there.

tonyg