D39 Superdome

The TrueDome™ D39 fits the reference 1665.

Please note the following:

The D39 is the proper crystal for reference 1665 Sea Dwellers. Although people sometimes installed these on Submariners we do not recommend this as testing has only been conducted on the reference 1665.

In order to get the best performance from your crystal we recommend cleaning with polywatch or hand soap and water. Avoid cleaning products that contain alcohol, ammonia, aromatics, and other abrasives. Alcohol can cause cracks and microfractures in the surface of the acrylics. Ammonia can eat into the surface of acrylic and leave it looking cloudy. Cleaning with proper solvents will assure optimal performance, clarity and longevity of your crystal.