Yes, this was a trademark of Schild Frères & Cie, later Eterna. The import hallmark in the case indicates either 1907 or 1927, but as the movement still has the Schild signature, 1907 is much more likely.It stands PROT in cross logo on the movement.
Adam (Horologist007) had to explain the meaning of red '12's to me while showing me his collection of early wrist watches... until then I had always thought it an English watch fashion oddity....
1) The red 12 indicates the "new" position of the 12, compared with common open pocket watches. Later it was misused as fashion gimmick, and is even met on pocket watches...
HiI found this patent today from 1904. Espacenet - Original document
It is same lugs that is on my watch. Schild Freres & Co planning to produce wristwatches already in 1903.
Maybe my watch was build in 1905, as the produce number tell us? Maybe it was hard to sell wristwatches in 1905 and the watches were not sold until after a few years? What do you think?
And a question about the red twelve: Is there evidence of other wristwatch manufacturers have used red twelve earlier than 1905?
What we know is your watch has a movement dated 1905 and a silver mark 1907.Yes, I am agree with the dates about the first production for wristwatches. Maybe I explained a little bad about the dates I wrote.
Schild Freres & Co filed a patent application on 20 January 1904. They must have started planning and drawings earlier than 1904, already in 1903. There was certainly a lot of work behind a patent application.
My Wristwatch have a serial number who dates the movement to 1905. The watch was imported to London in 1907.
So it is indications that Schild / Eterna produced wristwatches in the same period as Longines. What we not know is when the movement was placed in the wristwatch case. It must be in the period 1905 to 1907.
Early omega watches I do not know much about, only seen pictures in some books about wristwatches. There was also pictures of a mens wristwatch described as custom built from 1902.
In the book Pendant and Pocket watches 1500-1950, there is a picture of a watch from about 1900 with red 12. So it is used in other watches earlier.