The Angelus U10 Tourbillon Calavera is an even more flamboyant version of the U10 Tourbillon Lumière. But this one has a skull on it
Movement Angelus A-100 | Hand-wound | Dimensions: 52.10 mm x 30.40 mm | Thickness: 7.50 mm | Frequency: 18,000 vph (2.5 Hz) | Jewels: 38 | One-minute flying tourbillon | Swiss lever escapement | Screwed balance and hairspring with Breguet overcoil | Double barrel | Hours, minutes, dead beat seconds, power-reserve indicator | Power-reserve: 90 hours
Movement Angelus A-100