This is a beautiful Wilsdorf and Davis (Rolex) trench watch. It is hallmarked silver 925 case sponsor mark is W and D (wilsdorf and davis Rolex). The movement is not signed, however it does have 15jewels on it and is Swiss made. The dial does have a few small hairline cracks, and And it has the red 12. There is some damage to the sub dial please see pics. There are also a few dents and dings to the case, and the glass has some scratches as expected. Unfortunately the watch is not working, I don’t think the balance wheel is broken but it is sold as spares or repairs only .31mm diameter without crown.