Lazarus TIME!!!!! here is what Ziggy said
It's not a 2888, that is the Date of Manufacture...
The model number is never in that location, the model number was in the area to the left of the ETA mark, and it's missing as you can see where it was ground off...
Looks like a 2846 to me, but it's a ETA not CN.
RG
From what Rick914 and I have researched this movement seems to have been tricked up an used as a 2888 in Tugaris watches....in the Sandoz, Enicar, Favre kinda stuff (my movement was in a Sandoz date head btw)....found several pics like the one posted and MY 2846 21,600 that has the same markings and 2846 stamp removed....so if you run across one its a 2846....
cls just serviced mine and replaced the Main Spring as well as full service with a 2836's GMT components added to the 2846 to make IT a GMT thats in my 1675...