When the Angelus engineers set out to develop, design and manufacture the U40 Racing Tourbillon Skeleton, they went way beyond the confines of traditional watchmaking and took their cue from cutting-edge architecture and high-performance structural engineering, some of the world’s greatest supercars and aerospace-inspired technology. The result of their labours, which involved four years of intensive R&D, is the Angelus Tourbillon Skeleton A-300 calibre.
Unlike most conventional skeletonized watches, which tend to be cut-out versions of existing models, the U40 was designed to be a skeleton from the start and is based on structural optimization.
Model: U40 Racing Tourbillon Skeleton
0TSAT.B01A.K007T red hands
0TSAT.B01B.K007T white hands
Features and Indications
Central hours and minutes, one-minute flying tourbillon
Movement and Finishing
Calibre: A-300, mechanical hand-winding tourbillon movement
Complications: One-minute flying tourbillon
Diameter: 32.8 mm
Height: 4.30 mm
Power reserve: 60 hours
Frequency: 4 Hz / 28,800 vph
Balance wheel: Black, gold-treated
Escapement: Swiss lever
Regulated: Set to 5 positions
Gear train: Wheels with exclusive Angelus six-spoke design to maximize rigidity
Main plate: Snailed with chamfered edges, black ADLC coated
Upper bridges: Snailed with chamfered edges, black ADLC coated
Tourbillon cage: Mirror-polished with chamfered and polished edges
Chapter ring: Multi-step with indexes treated in black and dark grey with white and red prints
Hands: Skeletonized, polished facet and sandblasted with coloured tip central hour and minute hands
Material: Grade 5 titanium with black coating on the case band
Diameter: 42 mm
Thickness: 10 mm
Crown: Engraved with ANGELUS logo, 2 positions: 1 winding, 2 time setting
Distance between lugs: 21 mm
Water resistance: 30 m / 100 ft / 3 atm
Crystal: Box sapphire crystal with anti-reflective coating
Strap and buckle
Material: Black rubber, with 3D motif, Angelus logo and titanium pin buckle
Length range: 120/75 mm
Width: 21/18 mm
Buckle: Titanium pin-buckle
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