Reference
MB&F Legacy Machine 101
Reference 51W12535 · 18k White Gold
The lowest current ask for the MB&F Legacy Machine 101 (ref. 51W12535) is $110,000 at A Collected Man. The auction record is $52,920 (Christie's Dubai, 2024). Updated July 4, 2026. View lowest ask →
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About this reference
The MB&F Legacy Machine 101 reference 51W12535 features an 18k white gold case measuring 40mm in diameter and was produced between 2014 and approximately 2021. This reference is significant as it houses the first movement developed entirely in-house by MB&F, with finishing specifications overseen by Kari Voutilainen. The design prioritizes the 14mm suspended balance wheel positioned above a sunray blue dial, flanked by two floating white lacquer subdials for time and power reserve. Collectors value this model for its wearable dimensions compared to larger Legacy Machines and its historical role in establishing MB&F’s technical independence. On the secondary market, this reference typically trades in the $50,000 to $70,000 range depending on condition and provenance. A notable production shift occurred in 2021 when the model was updated to the "Evolution" series, making these original white gold references a distinct closed production chapter.
Auction track record
1 documented sale since 2024. Top hammer $52,920 at Christie's Dubai in 2024. Median hammer: $52,920.
Ranks #17 of 26 MB&F auction lots we track — see all MB&F records.
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All documented hammer prices
For this reference (and close variants).
| Lot | Year | Hammer | Venue |
|---|---|---|---|
| 51W12535 · Legacy Machine 101 | 2024 | $52,920 | Christie's Dubai |
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