In most cases you can use your original gasket with no issues.
Domed 1mm Watch Glass Crystal Lens With Gasket Choices 17mm to 50mm Range
6pcs Watch Glass Crystal Lens, 41.5mm Dia. 1.2mm Thick Double Dome Watch Glass
3pcs Watch Glass Crystal Lens, 25mm Dia. 1.1mm Thick Double Dome Watch Glass
6pcs Watch Glass Crystal Lens, 40.5mm Dia. 1.1mm Thick Double Dome Watch Glass
3pcs Watch Glass Crystal Lens, 45mm Dia. 1.1mm Thick Double Dome Watch Glass
6pcs Watch Glass Crystal Lens, 30mm Dia. 1.1mm Thick Double Dome Watch Glass
