MB&F Horological Machine N°4
Launched 2010; a run of roughly 100 movements produced across all executions before retirement
2 references
“Differs” marks a spec with different recorded values. — means not recorded.
| Spec | Thunderbolt | 40.RSL.R Thunderbolt RT |
|---|---|---|
| Thickness | 24 mm | 24 mm |
| Case Differs | Titanium with sapphire crystal midsection, other | Red gold, titanium and sapphire, other |
| Crystal | Sapphire | Sapphire |
| Caliber | HM4 | HM4 |
| Movement maker | MB&F | MB&F |
| Movement type | Manual | Manual |
| Power reserve | 72 h | 72 h |
| Complications | power reserve indicator | power reserve indicator |
| Bracelet | leather strap | leather strap |
| Produced Differs | 2010–2012 | 2012–2012 |
| Limited edition | Not recorded | 18 pieces |