Clean a gold-plated watch by scrubbing it with a toothbrush and toothpaste to rid its surface of dirt and oil buildup; make sure the watch is waterproof first. Use a small amount of WD-40 to clear up any tarnished areas.
- Clean off dirt and oils
Squirt toothpaste onto a soft-bristled toothbrush, and scrub away dirt and bodily oils spread along the watch surface. The bristles in the toothbrush allow for cleaning any intricate engravings or recessed lines in the watch. Rinse the brush with clean water when it becomes too dirty, then reapply the toothpaste before cleaning the watch further.
- Rinse the watch
Rinse the watch off in clean running water after cleaning the surface with the toothbrush. The rinse removes any residue left from the cleaning process. Use a clean toothbrush to help remove any residue from recessed or engraved areas.
- Remove tarnished areas
Spray WD-40 over any tarnished areas of the watch. Allow it to sit for a few minutes, and then rub the WD-40 off with a finger to remove the tarnish. Rinse the watch under clean running water to remove traces of the WD-40.
- Buff the watch
Dry and buff the watch with a soft, lint-free cloth. Rub the watch between folds of the cloth to add a shine to the gold plating.