131.25.29.20.53.001Ref

Released in late 2018, this 29mm Omega Constellation Manhattan Co-Axial Master Chronometer has a steel and 18K yellow gold case and bracelet. Its aventurine dial features diamond hour markers, a date aperture at 6 o'clock, and the self-winding calibre 8700; this METAS-certified movement is magnetic-resistant to 15,000 gauss, offers a 50-hour power reserve, and is visible via the transparent case back.