Longine Mens Watch And 14K Gold Band and Case. Total weight is 55 Grams.

Weight with movement and back removed is 41 Grams.

The movement doesn't come off the back easily   (Iam not a jeweler). Back weight estimate is c-5  Grams. Total weight of 14k GOLD  is c- 46 Grams.

The 2nd hand popped  off when the back was snapped back into place, and is somewhere on the dial. Watch was tested 24 hours Before that incident and ran well. Winding and time set worked properly.

I suggest you add insurance if you are the lucky winner.