Answer

151.10.45.50.01.001 is a six-block reference string in Omega's format. The blocks read as collection, case material, case size in millimeters, movement, dial color, and final variant. The number appears on replica listings as a product label. It carries no serial data and no proof of origin.

We could not match this exact string to a Constellation entry in Omega's public catalog. Constellation cases in that catalog run from 25 mm to 41 mm. The "45" block points to a 45 mm case. Buyers who want a set size should ask the seller for a measured case diameter, not a reference number.

How to read the six blocks

  • 151: collection code.
  • 10: case material. In Omega listings, 10 marks stainless steel.
  • 45: case diameter in millimeters.
  • 50: movement or function code.
  • 01: dial color. In many Omega listings, 01 marks a black dial.
  • 001: variant code, often the bracelet or strap type.

Omega assigns these numbers at production. Replica sellers copy the string onto case backs, hang tags, and box labels. A correct string does not mean a correct watch.

Common replica tiers

  1. Quartz, 316L steel case, mineral glass. Weight runs 90 g to 120 g. Price $40 to $90.
  2. Automatic, 316L steel, sapphire glass. Weight runs 120 g to 150 g. Price $150 to $350.
  3. Clone movement, 904L steel claim, sapphire with anti-reflective coating. Price $400 and up.

Checks before payment

  • Case diameter at the 9 to 3 o'clock line, in millimeters.
  • Movement name and country of assembly.
  • Lug width and bracelet end-link fit.
  • Dial print: star at 6 o'clock, claws at 3 and 9.
  • Case back engraving depth and alignment of the reference string.
  • Weight on a kitchen scale. A 45 mm steel watch with a bracelet runs above 150 g.
  • Return window in writing.

US legal position

18 U.S.C. § 2320 makes trafficking in counterfeit goods a federal crime. CBP can seize and destroy counterfeit shipments at import. A single watch in a personal shipment can be held. Payment through a card processor gives a dispute path. Bank transfer does not.

Price and parts

Replica Constellation movements come from a small set of suppliers, so spare parts are scarce. Budget for a full movement swap, not a repair. That cost often tops the price of the watch.