Ball Watch Company Trainmaster Kelvin Celcius. This new Ball watch equipped with a patented mechanical thermometer which measures an outside temperature between minus 35 degree Celcius and plus 45 degree Celcius marks a tribute to Lord Kelvin, the 19^th Century Physicist who established the Absolute Thermometric scale. The Ball Trainmaster Kelvin Celcius is showcased on a smooth silver dial which is 39.5mm in diameter and just 11.8mm in depth. Powered by the automatic movement RR1610 C, the timepiece demonstrates the level of mastery found within each and every development launched by the Ball Watch Company. With a water resistance of 300 meters and protected by a strong sapphire crystal glass front with scratch-resistant qualities, this innovative manual wound timepiece is equipped to withstand extreme outdoor conditions, yet manages to keep in line with those loyal attributes recognisable of a thoroughbred Ball watch. A set of sleek hour and minute hands, together with a needle thin seconds hand joins a number of matching stainless steel assets such as the baton style hour indexes and contours of the bezel with lugs that lead to a beautiful brown leather strap. This exquisite Ball watch is a certified chronometer, a highly engineered timekeeping instrument of supreme quality which is mirrored by the small seconds sub dial at the 6 o clock location, making the Trainmaster Kelvin Celcius a must have piece for 2015. Supplier model number NT3888D-LLCJ-SLC