A flying tourbillon. An Angelus skeleton calibre. Professional diving skills. Asymmetric design. Rotating flange. A 25-piece limited series. All available in khaki green. From the vast palette of greens, Angelus has chosen a khaki shade. This colour is also found on the U53's rotating flange, strap and hands - a bold statement for a sports watch which also works effortlessly in more formal settings, offering a casual, chic look.

The Angelus A-300 is a skeleton calibre characterised by its large bridges. By their openwork in the centre, which specifically evokes the design of Angelus' calibres. By its one-minute flying tourbillon, with its contemporary technicity, and by the slightly asymmetric placement of all its vital components.

U53 meets all the criteria for watches intended for underwater use. Its case is water-resistant to 300 metres. Its 60 minute-graduated rotating flange only turns anticlockwise. Its hands and indices are luminescent.