Catalyst case for 42mm Apple Watch Series 3 & Series 2 - Waterproof Shock Resistant (Stealth Black). The Catalyst case for 42mm Apple Watch Series 3 is FULLY COMPATIBLE with the 42mm Apple Watch Series 2. The Catalyst case for the 42mm Apple Watch Series 3 has a waterproof score of IP68. Dive as deep as 330 feet (100 meters). Catalyst cases exceed MIL-STD 810G military standard for shocks and drops up to 6.6ft (2 meters). Made of impact resistant scratch proof rugged polycarbonate with light... Ray Bans, Apple Watch 42mm, Apple Watch Series 3, Apple Watch Series 2, Apple Watch Series 1, Apple Watch Strap, Apple Watch Series, Apple Watch Bands, Apple Watch Case