Answer first
A replica de Ville 431.10.44 is a copy of the Omega De Ville Chronoscope, a 44 mm Co-Axial chronograph with a two-register dial and a calendar at 6 o'clock. The genuine reference uses an Omega 3313 movement, a sapphire crystal, and a 100 m water resistance rating. Replica sellers reuse the 431.10.44 number loosely, so treat the reference as a starting point, not a guarantee. Match case size, dial layout, subdial spacing, and crown position before you send money.
Know what the number points to
The 431.10.44 family covers stainless steel De Ville Chronoscope models, mostly on leather straps or steel bracelets. Genuine specs you can check against a listing:
- Case diameter: 44 mm, thickness around 13 mm
- Movement: Omega Co-Axial caliber 3313, automatic, chronograph
- Dial: two subdials at 3 and 9, date window at 6, applied hour markers
- Crystal: domed sapphire, anti-reflective on both sides
- Water resistance: 100 m
- Caseback: exhibition with sapphire, engraved reference
If a seller shows a 40 mm case, a three-register dial, or pushers at 2 and 4 instead of 2 and 4 on a 44 mm body, the item is not a 431.10.44 copy.
Vet the seller before ordering
- Ask for dated photos of the actual watch, not catalog renders.
- Request a close-up of the caseback reference engraving and the clasp code.
- Confirm the movement type, hand-wound or automatic, and the subdial functions.
- Ask which factory built it and what version number the batch carries.
- Get the total price in writing, including shipping and any customs risk.
- Pay with a method that allows a chargeback, not a wire transfer.
Inspect the watch on arrival
- Time the chronograph start, stop, and reset three times.
- Check that both subdials sweep and return to zero.
- Wind the crown 30 turns and confirm the rotor spins freely.
- Measure the case with calipers and compare to 44 mm.
- Press the date corrector and confirm the date snaps cleanly.
- Test the crystal with a fingernail tap for a dull sapphire sound.
- Verify the strap stitching and the buckle engraving depth.
Common red flags
- Photos with a visible watermark from another seller
- Subdials that are printed rather than recessed
- A date window that sits off-center
- Pushers that feel loose or grind when pressed
- A price far below the normal replica tier for this reference
- A seller who refuses a video call or a timestamp photo
US legal and shipping notes
Omega holds trademarks on the name and the dial logo. US Customs can seize counterfeit watches at the border, and the buyer carries the loss. Importing a replica is not a legal shortcut; it is a risk you accept. Keep the order confirmation and photos in case you need to dispute a charge.
Bottom line
Use the 431.10.44 reference to confirm the 44 mm chronograph layout, then judge the specific watch on movement, dial depth, and seller transparency. A correct copy matches the case size and subdial spacing; a vague listing with recycled photos does not.