Rather than a long explanation, here is a detailed list of technical specifications.Hand wound,
with mechanical movement.Functions:
Hours, minutes, winding duration, couple indicator, split-second fly-back chronograph, functions indicator.
: 70 hours (shown on left side of spring drum)CHRONOGRAPH
with column wheel in titanium
The modern architecture of the RM 008 enables a logical and rational arrangement of the pieces that go to make up its movement. It avoids any unnecessary superposition and allows optimum use of the functions and technical solutions adopted. For example, the geometrical path of the column wheel that commands the various balancing mechanisms was studied to ensure a perfect simultaneity of the movements and was developed to ensure that the watch could always be adjusted correctly with faultless repetitiveness of functions.
Starting the chronometer: a push on the left side button at 8 o’clock sets off the chronograph and a second push stops it. One push on the button at 10 o’clock restarts the hands. SPLIT SECOND FLYBACK
One of the characteristics of this function is that it almost entirely eliminates the jumping movement of the hands. A number of studies have led to the creation and manufacture of clutch wheels and bascules in titanium, to reduce inertia. The development of the pieces of the new generation split second fly back makes it possible to reduce energy consumption and eliminate jumping.
How it works: one push on the right hand side button at 4 o’clock enables an intermediary time to be read, (with the chronograph engaged). A second push enables the hand to fly back to the chronograph hand. COUPLE INDICATOR
Shows spring drum spring tension, and optimises chronometry of movement. Below 53dNmm, (above (Newton/ mm) the spring is judged not to be tight enough, whereas above 65dNmm too much tension will affect the mechanics, and may even damage them. These figures are indicated on the numbered zone at the left of the spring drum.BALANCE WHEEL WITH VARIABLE INERTIA
Guarantees greater reliability in the case of impact or during building or dismantling the movement, while getting the best results from the chronometer. The raquette has been eliminated to allow for finer and more repetitive time adjustment. RAPID ROTATING SPRING DRUM
(6 hours per turn instead of 7,5 hours)
The RM 008’s rapid rotating spring drum prevents the spring from sticking and the excellent delta form of the spring improves performance. SPRING DRUM CATCH WITH PROGRESSIVE RECOIL
Allows a significant 20% gain in rewinding and eliminates too much tension on the spring drum catch.SPIRAL
A special spiral curve was developed to reduce displacement of the centre of gravity while the watch is working. ESCAPEMENT
A new in line escapement track reduces friction.MODULAR TIME-SETTING MECHANISM SITUATED ON BACK OF CASE
This development enables building and dismantling of a module from behind without removing the hands and the dial, as well as its construction or manipulation outside the movement. In case of defects, the time-setting bloc can be changed while keeping the plate complete. FUNCTIONS INDICATOR
The position of each function is shown by a needle at 4 o’clock. An ingenious system which also prevents any damage to water resistance and eliminates excess tension by maintaining the holding bit in a neutral position. SPRING DRUM COVER HELD CLOSED WITH ASSYMETTRIC SCREWS
A new development to make maintenance easier.POSITIONING OF TIME-SETTING LEVER BY WHEEL
Improves time-setting functions and friction, which are replaced by rolling friction. SPLINE SCREWS IN GRADE 5 TITANIUM FOR BRIDGES
(Hand-threaded with cold chisel.)
Enable improved use of screwing torque and have minimum sensitivity to manipulations during building and dismantling, thus improving the ageing process.