B.R.M Bi-Rotor Delivery Time for building this model is 6-7 weeks Technical characteristics Case: Rectangular Universes : Racing Case diameter : 40x48 Case material : Titanium or black PVD titanium Lugs : Stainless steel Crown : Stainless steel Glass top and bottom (bottom and bezel) : Sapphire Specific screws : Superfine stainless steel Weight without bracelet : 100g Dial : Skeleton Hands : Orange, red, white or apple green Movement : BRM/Precitime automatic movement Manufactured movement : Yes Caliber : Self-winding engine caliber Alternations per hour : 28800 Ruby : 24 Device : stop seconde Crown type : screwed Nesting circle : Carbon triangle fixed by progressive step springs Pendulum type : shockproof Power reserve : 48h Date : No Waterproofing : 100 meters Space between lugs : 32x28 mm Buckle : lightweight stainless steel pin buckle machined from solid metal made up of 9 parts Rubberstrap in different colors fits to color of the hands Box: Dimensions of the case : 24 x 16 x 9 cm Color : black Interior : gray suede Watch Guarantee : 3 years