Quick answer
A replica Rolex Day-Date 128346 is a counterfeit copy of a Rolex Day-Date 36. The genuine watch is built from solid 18k gold or platinum and runs Rolex calibre 3255. No copy matches the metal, the movement, or the finishing. In the United States, importing or selling one breaks trademark law, and the buyer carries part of that risk.
What reference 128346 is
The 128346 sits in the Day-Date 36 line, a model Rolex has produced since 1956. Every version shares a layout: a 36 mm case, the day spelled out in full in an aperture at 12 o'clock, the date at 3 o'clock, and the President bracelet with semi-circular three-piece links. The case is solid gold or platinum, not plated steel. Rolex rates the Day-Date 36 to 100 metres and certifies it to −2/+2 seconds per day. Dial and bezel choices change the suffix that follows the reference, so confirm the exact configuration against Rolex's own listing before you compare prices anywhere.
Why a first copy falls short
- Weight. Gold is about twice as dense as the brass and steel alloys used in copies. A genuine Day-Date 36 feels heavy in the hand.
- Movement. Calibre 3255 has a 70-hour power reserve and a Chronergy escapement. Copy movements run 30 to 40 hours and snap the day and date over with a visible jump.
- Hallmarks. Real casebacks carry gold hallmarks and a serial. Plated copies show a thin layer that wears through at the lugs and clasp.
- Day wheel. The genuine disc turns over at midnight. Copies drag or roll over across several minutes.
Legal and financial exposure
Counterfeit watches are illegal goods in the US. Customs and Border Protection seizes them at the border and destroys the shipment with no refund to the buyer. Sellers face civil damages and, in repeat cases, criminal charges. A buyer who pays by card or bank transfer has almost no path to a refund, because the transaction itself is unlawful. Repair shops and auction houses will not service or authenticate a counterfeit.
How to check a listing that claims this reference
- Ask for the full reference string, including any suffix letters, and match it to Rolex's official product page.
- Request a photo of the caseback interior and check for hallmarks and a serial number.
- Weigh the watch head on a scale and compare the figure to the published weight for that metal.
- Ask for a timegrapher reading and confirm the rate and amplitude fall in a normal range.
- Take the watch to an authorised dealer or a watchmaker with a Rolex parts account before any money changes hands.
- Walk away if the seller refuses any of these steps.
Alternatives with no legal risk
If you want the Day-Date look at a lower price, buy a dress watch from a brand that designs its own case and dial. Homage watches use a similar silhouette without copying the crown logo, the dial text, or the bracelet branding. They hold value better than a copy, they can be serviced, and they can be worn without a customs letter arriving months later.