Classic Omega Speedmaster Date featuring a sunburst silver dial and stainless steel tachymeter bezel on an original Omega stainless steel bracelet. Serial prefix (85.9M) indicates production circa ~2011–2012.

Condition: Overall very good pre-owned condition. The stainless steel bezel and case retain sharp lines with minor, honest surface hairlines from gentle wear. Bracelet and clasp show light desk-diving marks with strong link integrity. Dial and hands are pristine with bright, active Super-LumiNova luminescence.

Authenticity & Movement Health: Movement is the COSC-certified Omega Calibre 1164 automatic chronograph. Verified for authenticity and performance: Matching Serials: Clean serial engraving intact on the 7 o’clock lug (8593####). Beat Rate: Timegrapher confirms 28,800 VPH (4 Hz). Performance: Running at a steady -5 s/d with a strong 272° amplitude and minimal 0.5 ms beat error on a clean, solid trace line. Health: Fully demagnetized, stable rate, with crisp chronograph pusher start/stop/reset engagement.

Specs: Size: 40 mm diameter (19 mm lug width, ~15 mm thickness) Movement: Omega Calibre 1164 Automatic Chronometer Chronograph Depth: 100 meters / 330 feet Power Reserve: ~44 hours Includes: Watch only (fits ~7.5 wrist)