as I understand it [meaning that this is hardly definitive information], these engraved numbers were serial numbers used by the case-maker(s) to track the cases that they were supplying to Heuer, but Heuer did not maintain any information regarding these serial numbers. Accordingly, I am not aware of any source that can use these serial numbers to yield information about date of manufacture, model, etc.
scanning some serial numbers of Monte Carlos, I note the following:
- three-button, early cases have numbers 15xxx, 16xxx, 17xxx [this is true for all 13 on my list]
- two-button, later Monte Carlos have serial numbers 53xxx, 57xxx, 62xxx, 63xxx, 64xxx, 65xxx, 66xxx, 72xxx, 73xxx [so the 12 on my list range from approx. 53000 to approx. 73000]
turning to a list Master Times, I see that all the case numbers range from 18005 and 18034 (on a couple of the older ones, with numerals 3-6-9-12 on the dial) to 24492 and 24645 (on a couple of the newer ones, numerals 1-through-12 on the dial).
so perhaps it is possible to put them into a rough sequence by these case numbers??
In each instance, the engraved number is five digits. So if you are looking at 15039, that would seem right for an early Monte Carlo. If you are looking at 27010, then I have no idea where that fits in. If you are looking at 15039-27010 (a ten digit number), then I would guess that it is a military issuance marking.
I hope this helps.
Jeff
++++++++++++++++++++++++++++++++++++++++++++++++++
: HELLO ! With regard Monte Carlo dash mount are
: the numbers engraved on the case
: eg:15039-27010 model, serial or part No's
: THANK YOU RONNIE.
