OMEGA - a Vintage 18ct gold Constellation Calendar automatic chronometer wristwatch, ref. 886, circa 1960s, silvered dial with baton hour markers, magnified date aperture and textured 18ct Omega strap, 24 jewel movement with calibre 561, hallmarks London 1961, case no. 77087, movement serial no. 17211908, case width 34mm, working order, 97.2g gross Good overall condition, working order, dial has a few very small surface dirt specks, glass and case are lightly abraded through general use, the first 4 links and last 2 links on the top half of the strap are fused together, the rest of the strap articulates well and the clasp is working, crown working, no quick-set date function, hands adjust smoothly.