The movement looks like an Omega 19''' key-wound. What makes you think it is a 12'''? What is the diameter of the movement?
They were produced over quite a long period (roughly 1900 to 1910). Reference 525.19.
This was presumably because of a market still existing amongst 'traditional' customers who still wanted a key-wound watch.
The success of the 19''' was largely because of the 8760 patent (stem-wound and -set) - but the key-wound still sold.
sorry for late response
you are right, I thought it looked like 12" but as you say it is a ligne 19. I took the movement out and under the dial it says 8760 and serial number dating it from around 1897.
but I didn't know there key wind Omega's too.
the plate at the winding part is also very different.
sorry for late response
you are right, I thought it looked like caliber 12 but as you say it is a ligne 19. I took the movement out and under the dial it says 8760 and serial number dating it from around 1897.
but I didn't know there key wind Omega's too.
thanks for youre reply.
i have no case the made it into a clock as you can see in the pictures, but are there key wind Omega's with patent 8760? i cant find anything.
That’s understood – but it means you can’t date the watch (only very approximately). Movements were made in batches and used over a period of years, sometimes many years.
Your question about 8760 shows the ‘joke’ – the Brevet 8760 (which is effectively a Swiss patent) was a wonderful development and helped lead to great Omega success. 8760 introduced stem-setting and winding (thus removing the need for pin-setting or a key) – but they did continue making some key-wound watches: as I wrote earlier, “presumably because a market still existed amongst 'traditional' customers who still wanted a key-wound watch” (but that’s only my supposition).
So 8760 does not apply to this watch – but by this time, maybe it was applied to all movements they produced.
