The MB&F Legacy Machine Perpetual 03.SL.S is a masterful reinterpretation of the perpetual calendar, combining traditional aesthetics with groundbreaking mechanical innovation. Crafted in stainless steel, its 44mm case houses one of the most advanced calendar movements in contemporary watchmaking.
Developed by Stephen McDonnell, the fully integrated perpetual calendar features a dial-side display with a patented mechanical processor system and built-in safety mechanism, ensuring intuitive operation and reliability. The openworked salmon dial showcases the complexity of the mechanism, highlighted by MB&F’s signature suspended balance wheel.
Driven by a manual-winding movement with twin barrels and an oversized balance wheel, this timepiece offers both precision and visual depth. A refined yet highly technical piece, it stands as a benchmark for modern horological innovation.
The SPECS
Details
| Reference 03.SL.S |
Model Legacy Machine Perpetual |
Year 2023 |
| Condition Like New & Unworn |
Box & Papers Original Box, Papers |
Case
| Material Stainless Steel |
Diameter 44 mm |
Thickness 17.5 mm |
Dial & Features
| Dial Openworked Salmon |
Complication Perpetual Calendar |
System Mechanical Processor |
Movement & Strap
| Movement Manual Winding (Twin Barrels) |
Balance Oversized Suspended Balance Wheel |
Strap Alligator Leather |
