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Omega Speedmaster Calibre 321 Professional Chronograph 42 Ref. 311.90.42.30.99.002
Original price was: $580.00.$470.00Current price is: $470.00.19% OFF
Description
Description
Omega Speedmaster Calibre 321 Professional Chronograph 42 mm – Ref. 311.90.42.30.99.002
Overview
The Omega Speedmaster Calibre 321 Ref. 311.90.42.30.99.002 is the ultimate expression of the Moonwatch heritage, crafted in platinum Pt950Au20 with a distinctive onyx black dial featuring lunar meteorite subdials. Powered by the legendary Calibre 321, this timepiece fuses space history with haute horlogerie artistry.
Design & Materials
- Case: 42 mm asymmetrical Professional case in platinum (Pt950Au20 alloy with 20% gold), with sapphire crystal and exhibition caseback.
- Bezel: Black ceramic bezel with white enamel tachymeter scale, including the period-correct Dot Over 90 detail.
- Dial: Black onyx step dial with three grey lunar meteorite subdials; applied Omega logo and hour markers in 18K white gold.
- Bracelet: Platinum flat-link bracelet with folding clasp and fine adjustment system.
- Crystal: Scratch-resistant sapphire, front and back.
- Water Resistance: 50 meters (5 bar).
Movement
- Caliber: Omega Calibre 321, manual-winding chronograph, column-wheel controlled.
- Functions: Hours, minutes, small seconds; central chronograph seconds; 30-minute counter; 12-hour counter.
- Frequency: 18,000 vph (2.5 Hz).
- Power Reserve: Approximately 55 hours.
- Decoration: Sedna gold PVD-coated bridges, visible through sapphire caseback.
Technical Specifications
- Reference: 311.90.42.30.99.002
- Collection: Speedmaster Professional
- Case: Platinum Pt950Au20, 42 mm
- Bezel: Black ceramic with white enamel tachymeter scale (DO90)
- Dial: Onyx black step dial with lunar meteorite subdials
- Bracelet: Platinum flat-link bracelet with folding clasp
- Crystal: Sapphire crystal, front and exhibition caseback
- Water Resistance: 50 meters / 167 feet
- Movement: Calibre 321, manual-winding, ~55 hours power reserve
- Condition: New / Unworn
- Box & Papers: Omega presentation box and international warranty
Prestige & Value
The Speedmaster Calibre 321 Ref. 311.90.42.30.99.002 combines a historically faithful movement with precious-metal craftsmanship. Its onyx dial, meteorite subdials, and platinum construction make it a collector’s masterpiece—a Moonwatch redefined for connoisseurs of rarity and refinement.
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