RM 025
RM 025
RM 025

Men's collection

RM 025

TOURBILLON CHRONOGRAPH DIVER’S WATCH

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DEEP COMPLEXITY

The extreme conditions of submarine use called for the design and construction of an extreme technical product. An instrument involved in actually protecting the life of its user. The technology here demanded high performance, of course, with the added parameters of safety, reliability, robustness and ergonomic function.

Main characteristics

300 METER WATER RESISTANT CASE. The watch is water resistant to 30 atmospheres (300 meters) following ISO 6425 diver’s watch norms. This is achieved with a unique tripartite case design complemented by the additional integration of the lugs into the case’s torque screw system, as well as the torque limiting crown and a new design
of watertight pushers. The lugs of all versions (18-carat red and white gold or titanium) are in 18-carat red gold, with screws for the attachment of the rubber diving strap.

01
CALIBER RM 025
Manual winding tourbillon movement with hours, minutes, chronograph, power reserve, torque indicator, function indicator.

TORQUE INDICATOR Supplies information about the tension of the mainspring, and allows the optimization of the chronometer function of the movement. Below 53 dNmm, the spring is considered to be too slack, while above 65 dNmm, the excessive spring tension can adversely affect the mechanism’s operation, or else actually endanger it. These indications appear on the numerical zone to the right of the barrel.

02
CALIBER RM 025
Manual winding tourbillon movement with hours, minutes, chronograph, power reserve, torque indicator, function indicator.

BEZEL Built up of three layers connected with 22 screws, turning unidirectionally following ISO 6425 norms to avoid timing miscalculations. The use of an additional screwed system attaching the bezel to the watchcase makes it absolutely stable as well as impossible to inadvertently dislocate or loosen. In addition, the use of screws allow for perfect adjustment since the bezel is not tensioned into position. For clearer visibility under murky conditions, starting at 12 o’clock, the five-minute markers of the first quarter are highlighted red.

03
CALIBER RM 025
Manual winding tourbillon movement with hours, minutes, chronograph, power reserve, torque indicator, function indicator.

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).

04
CALIBER RM 025
Manual winding tourbillon movement with hours, minutes, chronograph, power reserve, torque indicator, function indicator.

CALIBER RM 025 Manual winding tourbillon movement with hours, minutes, chronograph, power reserve, torque indicator, function indicator.

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Approximate scale 1 : 1

Main characteristics

300 METER WATER RESISTANT CASE. The watch is water resistant to 30 atmospheres (300 meters) following ISO 6425 diver’s watch norms. This is achieved with a unique tripartite case design complemented by the additional integration of the lugs into the case’s torque screw system, as well as the torque limiting crown and a new design
of watertight pushers. The lugs of all versions (18-carat red and white gold or titanium) are in 18-carat red gold, with screws for the attachment of the rubber diving strap.

CHRONOGRAPH RM025

The modern architecture of this movement has allowed for the consistent and rational arrangement of its constituent parts, avoiding unnecessary superimpositions and permitting the best possible use of the functions with technical solutions. For example, research was conducted into the geometrical design of the column wheel that controls the different levers to ensure the perfect, long-term simultaneity of the functions, a feature that is essential for a high performance chronometer. This design was implemented in order to achieve a high degree of continuity of the settings and an unfailing repeatability of the functions. Operation: the user can start or stop the chronograph function via the pusher located on the lower left at 8 o’clock. The hands are reset by pressing another pusher located on the upper left at 10 o’clock.

CHRONOGRAPH RM025

The modern architecture of this movement has allowed for the consistent and rational arrangement of its constituent parts, avoiding unnecessary superimpositions and permitting the best possible use of the functions with technical solutions. For example, research was conducted into the geometrical design of the column wheel that controls the different levers to ensure the perfect, long-term simultaneity of the functions, a feature that is essential for a high performance chronometer. This design was implemented in order to achieve a high degree of continuity of the settings and an unfailing repeatability of the functions. Operation: the user can start or stop the chronograph function via the pusher located on the lower left at 8 o’clock. The hands are reset by pressing another pusher located on the upper left at 10 o’clock.

STRAP RM25

The RM 025 has a new strap, made of perfluoroelastomer Kalrez® *. This material is ideal for environments such as pharmaceutical industry, aerospace and aeraunautics environments requiring a superior degree of purity. Kalrez® effectively reduces absorption, desorption and products of extraction, ensuring minimal contamination. In fact, the perfluoroelastomer Kalrez® strap provides almost total chemical resistance, maintaining its properties at temperatures up to 327°C. Likewise, the strap ’s composition allows for optimal watertight protection, synonymous with longevity, as well as negligible residual deformation, which gives Kalrez® pieces their resistance to the extreme pressures imposed by deep-sea conditions. But the strap of the RM 025 is just as resilient to the pressures of daily life, unlike traditional rubber straps which are notoriously weakened by heat, UV light, chemical agents such as cleaning products and bleach, even pollution... The strap is manufactured by Biwi SA**, a Swiss firm specialising in the moulding of high-precision vulcanised elastomers like rubber and silicone, as well as technical plastics used in the manufacture of watchmaking components and medical parts. Use of Kalrez® material for this strap is the result of an exclusive association between the makers of Kalrez®, DuPont Performance Elastomers, and Biwi SA.

FAST ROTATING BARREL (6 hours per revolution instead of 7,5 hours) RM025

This type of barrel provides the following advantages: - The phenomenon of periodic internal mainspring adhesion is significantly diminished, thereby increasing performance, - Provision of an excellent mainspring delta curve with an ideal power reserve/performance and regularity ratio.