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First generation Colt Automatic crown screw in problem
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Author:  witti [ Fri May 04, 2012 11:21 pm ]
Post subject:  First generation Colt Automatic crown screw in problem
I have a first generation Breitling Aeromarine Colt ref: a17035.
While I'm screwing in the crown it is still winding the movement. Is that normal?
When the movement is fully winded, screwing becomes stiff. (but still possible)
I have dive watches both type, some winding the movement in this case, some have a system in the crown which disconnect from the movement when I push and screw in the crown.
Since this Breitling has a quite small crown the operation is not comfortable.

I much appreciate any opinions or experience with this model.
Many Thanks
Csaba

Image
Author:  Roffensian [ Sat May 05, 2012 4:04 am ]
Post subject:  Re: First generation Colt Automatic crown screw in problem
The watch will wind while screwing in the crown - you're still turning the crown stem against the keyless works and have never heard of anything different - certainly no way to disengage when pushing against the case :huh

There will be a little more resistance, but if it is becoming noticeably stiffer then it may indicate a lack of lubrication in the mainspring barrel. When was the watch last serviced?
Author:  witti [ Sat May 05, 2012 5:48 am ]
Post subject:  Re: First generation Colt Automatic crown screw in problem
Roffensian wrote:
The watch will wind while screwing in the crown - you're still turning the crown stem against the keyless works and have never heard of anything different - certainly no way to disengage when pushing against the case :huh

There will be a little more resistance, but if it is becoming noticeably stiffer then it may indicate a lack of lubrication in the mainspring barrel. When was the watch last serviced?


Many thanks for your reply.
Due to this problem the mainspring barrel and both reversing wheels (in fact all wheels in the automatic winding system) have been replaced by brand new parts. I still feel resistance when the watch is fully winded. Maybe it's the small crown I'm not use to?
For example my CWC RN auto watch does disengage when pushing the crown against the case. But it is clearly inside the crown itself.
But I'm not an expert :roll:
I appreciate your help
Author:  Roffensian [ Sat May 05, 2012 8:26 am ]
Post subject:  Re: First generation Colt Automatic crown screw in problem
witti wrote:
Roffensian wrote:
The watch will wind while screwing in the crown - you're still turning the crown stem against the keyless works and have never heard of anything different - certainly no way to disengage when pushing against the case :huh

There will be a little more resistance, but if it is becoming noticeably stiffer then it may indicate a lack of lubrication in the mainspring barrel. When was the watch last serviced?


Many thanks for your reply.
Due to this problem the mainspring barrel and both reversing wheels (in fact all wheels in the automatic winding system) have been replaced by brand new parts. I still feel resistance when the watch is fully winded. Maybe it's the small crown I'm not use to?
For example my CWC RN auto watch does disengage when pushing the crown against the case. But it is clearly inside the crown itself.
But I'm not an expert :roll:
I appreciate your help



If it's all new parts then no likely issue and you are just feeling the increased tension of the mainspring.
Author:  bnewbie [ Sat May 05, 2012 9:12 am ]
Post subject:  Re: First generation Colt Automatic crown screw in problem
I have the same watch.
Just need to apply some pressure until threads catch.
Author:  witti [ Sat May 05, 2012 11:29 pm ]
Post subject:  Re: First generation Colt Automatic crown screw in problem
bnewbie wrote:
I have the same watch.
Just need to apply some pressure until threads catch.


Have you ever had any issue by screwing the crown? It is really not easy to operate against the tension of the spring. I just try to figure out is it just the result of the small crown (as all my other divers have larger crown), or there is still lack of lubrication.
Many thanks
Author:  bnewbie [ Sun May 06, 2012 1:19 am ]
Post subject:  Re: First generation Colt Automatic crown screw in problem
I don't have a problem with spring tension.
Just rotate crown and put some pressure on it while winding until the threads catch.
It is probably a result of a small crown.
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