The Ball Engineer Master II Diver TMT is a limited run model capped at 2006 units to commemorate Guillaume Néry‘s attempt at the World Record of free diving at Villefranche-sur-Mer. In his attempt, Néry broke the World Record at the depth of 109 meters beating the previous record (his own) by 13 meters.
The unorthodox black casing is due to DLC (Diamond-like Carbon) coating, in place of the usual stainless steel case. Paired with the Tritium-filled micro gas tubes and black rubber straps, the Ball Engineer Master II Diver TMT exudes professionalism and style.
The bi-directional screw-down crown ensures that the bezel will not move underwater, providing you with an accurate estimate of your dive time. Paired with a Ball calibre 9018 based on the ETA 2892-A2, this watch has a power reserve of up to 42 hours to ensure your timepiece stays on time even when stored a way.
This special edition luxury timepiece comes with a built-in mechanical thermometer which allows you to measure environmental temperatures ranging from –30 to 110°F (-35 to 45°C) with a precision of 3%. At least that’s what the Ball online catalog says. From what I read in forums, it seems that you would have to take the timepiece off your wrist for a more accurate reading which would only be necessary if your dive computer malfunctioned!
The last I checked at Zurich Timepieces, The Gardens, this model retailed at whopping RM12k+ but if you think that’s too much to pay for a thermometer you won’t use, check out the Ball Engineer Master II Diver GMT instead. The Ball Engineer Master II Diver TMT also comes without the DLC coating in a stainless steel case.