Case material: Steel; Charge: Manual; Conditions: New Presentation condition : With dealer guarantee ; Model: RM035 Price on request Gmtbroker Reference: RM035 CASE: The RM 035 case is made of an extremely rugged and light aluminum and copper alloy called aluminum 2000.. It is frequently used to machine F1 pistons because of its extreme resistance to mechanical pressure and high temperatures. After a long and delicate machining phase, this alloy is given a new electro-plasma oxidation treatment called Miarox. The resulting coating is a cristalline oxide ceramic with an exceptional resistance. The blackish color is due to light-resistant spinels that are chemically inert. This improves both the durability and scratch resistance of this alloy, as well as its wear and corrosion properties. This treatment applied to aluminum 2000 is biocompatible and is used in aerospace, automotive industries and the medical sector. The case of the RM 035 is water-resistant to 50 meters, ensured by two Nitril O-ring seals and is assembled with 12 Spline screws in grade 5 titanium and abrasion resistant washers in 316L stainless steel. FREE SPRUNG BALANCE WITH VARIABLE INERTIA: This type of balance wheel represents the ultimate in innovation. It guarantees greater reliability when subjected to shock and also during movement assembly and disassembly, hence better chronometric results over time. The regulator index is eliminated and a more accurate and repeatable adjustment is possible thanks to 4 small adjustable weights located directly on the balance. C