Omega
Speedmaster Professional Millenium - Moon-Watch Classic Stainless Stell

Omega Speedmaster Professional — Ref. 3570.50.00 — 42 mm — Calibre 1861 — Hesalite Crystal — Pre-Owned 2000 — Near-Mint Condition — Steel Bracelet with Signed Deployant Clasp

A tool that measures time, accelerating your decisions day after day.

Each morning, you fasten to your wrist a page from the space epic that still inspires the world of business. Born for precision and adopted by exploration, the Speedmaster keeps pace with a full agenda, slips under a suit cuff, and quietly reminds you that the finest decisions are taken in a few seconds measured with rigor. The story begins in 1957, the Speedmaster’s initial commercial release, continues in 1965 with NASA qualification, and culminates in 1969 on the Moon. Our Ref. 3570.50.00 belongs to the contemporary generation (production 1996–2014), faithful to the original DNA: the 42 mm asymmetrical case with lyre lugs, black tachymeter bezel, domed Hesalite crystal, and solid caseback engraved with the homologation inscriptions. The example offered is year 2000, the Super-LumiNova era with the “SWISS MADE” marking at 6 o’clock, ensuring crisp, durable night legibility.

At its heart beats the hand-wound Calibre 1861, heir to the 861 lineage, with a proven architecture, 18 jewels, a frequency of 21,600 vph, and a power reserve of ~48 hours. The cam-actuated chronograph engages cleanly and consistently; for daily use, 50 m water resistance is perfectly suited. The tricompax dial delivers instant readability: small seconds at 9 o’clock, 30-minute and 12-hour totalizers, with Super-LumiNova hands and markers taking over at dusk. On the wrist, the silhouette remains compact and precise, instrument-like and unostentatious. The steel bracelet with signed deployant clasp ensures comfort and stability, alternating brushed and polished surfaces for a serious, versatile look. The back features a solid caseback “Flight-Qualified by NASA…”, a discreet reminder of its vocation as a purpose-built measuring instrument.

This 2000 Speedmaster is in near-mint condition: volumes and edges are preserved, bevels are sharp, and the Hesalite crystal bears the embossed Ω logo at center—a detail sought after by connoisseurs. There’s the everyday pleasure of manual winding, a simple gesture that sets the rhythm of the day and underlines that this chronograph is fully functional, not decorative. How to wear it? With a blazer and white shirt it signals assured taste for technically significant, historically rooted watches; with raw denim it retains the faithful tool-watch character. The Speedmaster remains a bridge between space heritage and contemporary efficiency, ready to time a run, a presentation, or a decisive meeting.

Buying from Mostra means peace of mind: comprehensive checks of timekeeping and functions, cleaning, bench observation in our workshop, and a certificate of authenticity. Your watch comes in a Mostra luxury case and is covered by the Mostra 3-year warranty, with our Aix-en-Provence team by your side for ongoing support and advice.

Discover our pre-owned Omega Speedmaster