I have found this 18k pocketwatch on the internet but i could not find wich brand it is.It has chronometer on the dial.And when opening the backside "clap" There is Bruxelles Milan with under Milan 1905 and under Bruxelles 1910,
and some circels and the word arcent.Also "Ancre . Levees . Visibles. 15 Rubis .B. Revete" is on the case. I hope someone knows its brand.