The power source of the “TAG Heuer SLR for Mercedes-Benz” is the calibre TH 17. It has an automatic winding mechanism operated by a central rotor as well as chronograph and date functions. To enhance its operational ergonomics, the chronograph push-pieces are arranged at an angle of 45%uF0B0 to the dial face instead of on the side of the case, placing them directly beside the outer bezel. TAG Heuer holds the patent on this watchmaking refinement. The dial has three subsidiary dials whose hands display the continuously measured small seconds, minutes and hours for the chronograph. A rhodium-plated ring enables the minutes and small seconds displays to stand out clearly from the black dial. Another special feature of the TAG Heuer SLR chronograph is the internal bezel with its 60-minute gradation. It can be rotated using the second crown beside the 9 o'clock position. This makes operations such as rapid countdown with the minutes hand possible. What makes this watch so comfortable to wear is the crocodile skin strap, cleverly integrated into the case. The SLR logo is engraved into the safety clasp as well as into the tachymeter scale. The words “Mercedes-Benz” appear on the dial below the 12 o'clock position, just above the emblematic TAG Heuer logo.