Regarding patents (the Brevet you refer to), 8760 was a Swiss patent which applies to many Omega watches from the early days – and refers to the method of stem-setting (as opposed to pin-setting or other methods that were common before and at this time).
There are different websites which will help, but here’s one that I use:
And this may be an easier way in:
Because it’s a Swiss patent, enter ‘CH8760’ into the ‘publication field’.
The watch you show has an Omega movement and dial but is not an Omega case: it will have been cased locally after delivery (to US?). The movement is fairly standard – with decoration that was typical for US exports, because that’s what was expected there: movements for most markets were not ‘decorated’ like this.
The calibre looks like a 19’’’LOB (the L stands for Lépine – ‘open face’, the O is for Omega – the company provided other brands, the B is the grade/quality – see comments from Canuck who shows a CCCR).
Your guess of 1907 is reasonable – but it could easily be 1903: judging the year by the movement number is not possible: movements were made in batches and used over a range of (sometimes many) years. In this period, Omega watches were listed/dated according to the Omega case number (that’s what’s in the Omega Archive).
I would not be surprised by the regulator setting (within a ‘normal’ range).
It looks a lovely gold pocket watch – and judging by the worn crown has seen some loving service.
Click to expand...