Used Calvin Klein watch waterproof Calvin Klein CK battery dead

This is a used item. Calvin Klein watch waterproof Calvin Klein CK battery dead It's a Calvin Klein watch. Model number:

K7K411.C6 I bought it for about 20,000 yen a few years ago and used it for several months.

Please note that the battery will run out. Also, the belt has some signs of use, so we would appreciate it if you could replace it if necessary. There is no box. Swiss made