The watch features a classic 42 mm stainless steel case with an asymmetrical design. It has a black dial, a black bezel with a tachymeter scale (including the "dot over 90" detail in some models), and three subdials for small seconds, a 30-minute recorder, and a 12-hour recorder.
Historically, the "Moonwatch" was powered by the manual-winding Calibre 1861 movement. Modern versions often feature the OMEGA Co-Axial Master Chronometer Calibre 3861, which offers enhanced precision, performance, and magnetic resistance.