In addition, the use of screws allows for perfect adjustment as the bezel is not tensioned into position.
Arpa is no longer at Romain Jerome, which is now headed by the talented Manuel Emch, the brand continues the Titanic DNA collection with a series of interesting models and renditions. This model which is under the T-Oxy III range is offered in the brands current limited edition collection as of now. You can get it in black steel, polished and black steel mixed, or in 18k red gold (as seen here). The bezel is made out of what Romain Jerome calls their "stabilized Titanic Extreme rusted steel." This is where the "Titanic" part of the watch really comes in.
Around 2006 Ball released its Caliber 9018 automatic movement. Contained in these Trainmaster pieces, the caliber 9018 has been in a few other watches since. It has the time, date, and thermometer (not digital). I believe it is built on a base Swiss ETA 2892 automatic movement with a thermometer module. Ball also liked to point out the that movement can withstand 5000 Gs of shock. I wonder if that is actually shock or just velocity. Oh, and the thermometer can pretty well tell the temperature from -35 Celsius to 45 Celsius.