MB&F Legacy Machine Thunderdome

About this reference

The MB&F Legacy Machine Thunderdome in platinum was released in 2019 as a limited edition of 33 pieces. This reference is significant for debuting the "TriAx" mechanism, a triple-axis tourbillon developed by Eric Coudray and Kari Voutilainen. The movement features three axes rotating at different speeds—eight, twelve, and twenty seconds—incorporating a Potter escapement and a hemispherical balance wheel. The platinum case measures 44mm in diameter and houses a light blue guilloché dial plate crafted in Voutilainen’s workshop. Collectors value this model as the fastest triple-axis tourbillon ever produced and for its unique technical architecture. On the secondary market, the platinum Thunderdome typically commands prices in the mid-to-high six-figure range, often between $450,000 and $600,000 depending on provenance. A notable production variant includes a five-piece "The Hour Glass" edition featuring a tantalum case and a dark blue guilloché dial.