OMEGA Speedmaster Professional 'Moonwatch' Ref. 145.022 — a pre-owned chronograph from 1991 supplied with papers. The watch features a stainless steel case with a black tachymeter bezel and matte black dial with tritium indices; it has a new leather strap with neutral clasp, a case showing slight signs of wear, and comes with warranty card, the original Wempe Mannheim purchase receipt (1991) and a service certificate dated January 2026. Freshly serviced (hand-wound Omega Cal. 861 movement) and recorded with very good accuracy (4 s/d, 328° amplitude). Key attributes: Black | Stainless steel | Hand-wound Omega Cal. 861 movement | Freshly serviced — accuracy: 4 s/d, amplitude: 328° (service Jan 2026) | Tachymeter scale for speed calculations | New leather strap with neutral clasp | Screw-down stainless steel case back | Manual winding (hand-wound movement) | Matte black dial with three sub dials | Tritium indices and hands | Black tachymeter scale on bezel | Screw-down stainless steel case back with hippocampus medallion and "NASA" lettering | Case with slight signs of wear | Dimensions & fit: Regular fit | Composition & care: Stainless steel | Leather | Wipe with a soft cloth. Keep away from strong magnets. Avoid prolonged exposure to moisture. Service periodically by a qualified watchmaker.