Quick answer
A fake Rolex Day-Date 128346 stands or falls on four things: case profile and weight, the gem-set bezel, the day and date display, and the movement inside. Replica factories build this reference in three rough tiers, and the gaps show up in bezel stone setting, the font and alignment of the day wheel, and how crisply the calendar snaps over. Ask a seller which tier and which movement they are shipping before you compare prices, because two listings at the same price can be very different watches.
What the 128346 is
The 128346 belongs to the Day-Date 36 family: a 36 mm case in 18 ct Everose gold, a President bracelet with semi-circular three-piece links, a day aperture at 12 o'clock, and a date at 3 o'clock under a Cyclops lens. The genuine watch runs Rolex calibre 3255, a perpetual, self-winding movement with a 70-hour power reserve. Because Rolex offers this reference with several dial and bezel combinations, confirm the exact configuration with the seller first. A replica built for a diamond bezel and a replica built for a fluted bezel are not interchangeable, and mixing them is the fastest way to spot a low-effort build.
Checkpoints that decide quality
Case and caseback
Look at the lug shape and the chamfer along the case flank. Good builds keep the lugs slim and the brushing direction consistent. Check the caseback engraving depth and the fit of the caseback against the mid-case. A gap here means poor machining, not a cosmetic flaw.
Bezel
On gem-set versions, count the stones, check that each setting sits level, and look for glue residue at the edges. Stones should be uniform in size and colour. On fluted versions, the flutes should be sharp and evenly spaced, not soft or rounded.
Dial and calendar
The day wheel is where most replicas lose credibility. The letters should be centred in the aperture and change cleanly at midnight. The date font should be thin and well spaced, and the Cyclops should magnify around 2.5x without distortion at the edges.
Bracelet
President links should taper and flex without rattling. Check the clasp engraving, the crown on the clasp, and whether the links sit flush when the bracelet is laid flat. Loose links and sharp edges are common on budget builds.
Movement
Ask directly. Asian clone calibres with a day and date complication behave differently from a decorated automatic with a bolt-on calendar module. Request a short video of the day and date changing.
Inspection procedure
- Ask the seller for the exact reference configuration: dial colour, bezel type, bracelet finish.
- Request photos at 12 o'clock straight on, then at a 45 degree angle, then a macro of the day aperture.
- Ask for a video showing the day and date rolling over at midnight.
- Confirm the movement name and the power reserve the seller claims.
- Weigh the watch. A 36 mm gold-style Day-Date on a full bracelet should feel substantial, generally well above 100 g.
- Check the crown action: winding should feel smooth, with a clear click into each position.
- Inspect the clasp and bracelet screws for tool marks before accepting delivery.
- Verify the timegrapher reading if the seller has one, and ask for the rate and amplitude numbers.
Price tiers
- Entry builds: stamped bezel, basic automatic with a stacked calendar, thinner plating. Expect visible day wheel misalignment.
- Mid tier: solid case, better dial printing, clone movement with a proper day and date function.
- Top tier: hand-set stones, correct Everose tone, clone calibre with a decorated bridge and close-to-genuine thickness.
Questions to ask before paying
- Which factory built it, and which batch is this?
- Is the day wheel in English only, or is it a multi-language disc?
- What is the actual case thickness?
- Does the warranty cover the movement, and for how long?
- Can you send a photo of the watch on a scale?
Realistic expectations
A replica is not a Rolex and carries no manufacturer service network. Plating can wear at the clasp and crown over time, and gem-set bezels can lose stones if they are glued rather than set. Keep the watch away from water unless the seller states a tested rating, and have the movement serviced by a local watchmaker if it starts losing time. Buy from a seller who describes the item as a replica, and treat any claim of genuine gold or genuine parts as a reason to walk away.