Introducing the MB&F Legacy Machine Perpetual 03.SL.S with a 44 mm diameter stainless steel case and a thickness of 17.5 mm. Developed by Stephen McDonnell, the movement boasts a fully integrated perpetual calendar, a dial-side complication, and a mechanica l processor system with a built-in safety mechanism. Its manual winding is powered by double mainspring barrels and features a bespo ke 14 mm balance wheel with visible traditional regulating screws. The dial flaunts an openworked salmon face, while the caseback is encased in sapphire crystal. The strap is expertly crafted with hand-stitched alligator leather and a stainless steel folding buckl e, completing the perfect blend of luxury and functionality.