One of the most complicated timepieces ever released in the watchmaking industry. Our aim was to tackle the drawbacks of traditional chronographs, reducing the jump of the hand at the start of timing, for example. We achieved this by reworking the entire gear train to reduce inertia. Instant locking of the split-seconds hand was obtained by achieving extreme precision of clearance in the pincers, thus stopping the wheel on both sides simultaneously. We also concentrated on ensuring the ease of operation of this complex model, and on optimising its performance in various ways. We incorporated a torque sensor to guarantee optimum winding, with a hand showing the zone of ideal spring tension, like the revolutions counter on a sports car. We also added a function indicator to show whether the watch is in Winding, Handsetting or Neutral mode. The complexity of this model is the consequence of perfecting all these functions simultaneously.
The RM 004 Felipe Massa has a baseplate in carbon nanofibre, split second chronograph and bears the colours of the Brazilian flag on its inner bezel and a red crown.
Limited edition of 25 pieces in red gold, 10 in white gold and 5 in titanium.
TORQUE INDICATOR Shows the mainspring’s tension: below 53 dNmm, the spring is too slack; at the other extreme, above 65 dNmm, excessive tension can adversely affect the running of the movement and may even cause damage.
POWER RESERVE Circa 50 hours Numerical indications to the left of the barrel.
FUNCTION INDICATOR In a manner similar to a car's gearbox, the function indicator allows one to see the winding, neutral and hand setting positions as the crown is pulled out. Each position is indicated via a hand at 4 o’clock displaying the following functions: W(Winding) – N(Neutral) – H(Hands).
CALIBER RM 004-V2 Manual winding movement with hours, minutes, chronograph, split seconds, power reserve, torque indicator, function indicator.