On most replica sites, 11 45100 is an internal catalog number for one fake Audemars Piguet build, not a real Audemars Piguet reference. It tells the seller which case, dial, movement, and bracelet to pull from stock. The same watch can carry a different code at another seller, so the number tracks inventory and batch, not authenticity or grade.
Why Fake Audemars Piguet Listings Use Codes at All
Replica wholesalers move volume, and volume needs tracking. A short numeric code does that job without printing a trademarked brand name on a price sheet.
- Payment processing: many processors block brand names in product descriptions, so sellers list "AP style 45100" or bare digits.
- Batch tracking: each factory run gets a code so the seller knows which version a customer received.
- Price tiers: budget, mid, and high-grade builds often sit in different number ranges.
- Discretion: a code keeps the storefront vague to anyone browsing.
How Replica Code Formats Work
Numbers like 11 45100 come in two blocks, and sellers seldom explain either one. The pattern below is common across replica catalogs, though no single standard exists.
The first block
Two digits often mark a category or supplier group. "11" may point to a case family, a factory, or a season of stock. On some sites it maps to steel Royal Oak models; on others it means nothing beyond a shelf label.
The second block
Five digits name the exact configuration: size, dial color, and strap. A 41mm blue-dial Royal Oak on a steel bracelet and a 37mm version on leather will not share the same number.
Version markers
You will see suffixes such as V2, V3, "new," or "plus" added to the base code. These mark revisions: a new movement, a thinner case, or a corrected dial print. Higher versions cost more because the factory changed a part, not because the watch is genuine.
Anatomy of a Replica AP Listing Line
A typical product line reads like this: "AP Royal Oak 41mm style 15400, steel bracelet, blue dial, code 11 45100, V2, Asian 2824 clone." Each part carries weight.
- "AP Royal Oak style": the design being copied, not the maker.
- 41mm, steel, blue: the spec you can verify from photos.
- 11 45100: the seller's own stock number.
- V2: which revision of that build is in stock.
- Movement: the part buyers overlook and later regret.
Real AP Reference Numbers vs Replica Codes
Audemars Piguet uses its own reference system, and those digits look different once you know them. A Royal Oak reference such as 15400ST.OO.1220ST.01 carries the model, the metal, and the bracelet in one string.
- 15400ST and 15500ST: 41mm Royal Oak in steel, two generations.
- 16202ST: the current 41mm Royal Oak extra-thin.
- 26470ST: a Royal Oak Offshore chronograph in steel.
"45100" does not appear in the AP catalog. It also sits close enough to 15400 that a rushed buyer may read it as the real thing. That is the trap: one swapped digit looks official on a listing page.
What a Fake AP Code Cannot Tell You
A code is a label, not a spec sheet. Two watches with the same number from different sellers can differ in case thickness, movement, and finish.
- Movement source: the code does not prove whether the watch runs a clone automatic or a decorated quartz.
- Case dimensions: listed sizes often differ from real measurements.
- Dial accuracy: print thickness, date font, and tapisserie pattern change by batch.
- Water resistance: listings claim it, and testing is rare.
How to Check a Code Before You Buy
- Ask the seller what both blocks mean in their own system. Vague answers are a warning.
- Request photos of the actual watch, not stock images, with a date card in the frame.
- Compare those photos against real Royal Oak references on the brand's site or a watch database.
- Ask for case thickness in millimeters. Thin cases cost more to build and are a quality signal.
- Confirm the return window in writing before payment.
- Price the same code at two or three sellers. Quotes should land in a similar range.
Questions Buyers Ask About 11 45100
Is 11 45100 a real Audemars Piguet model number?
No. Audemars Piguet Royal Oak references start with four digits such as 15400 or 15500, followed by metal and bracelet codes. 11 45100 shows up only in replica and wholesale catalogs.
Can two sellers use 11 45100 for different watches?
Yes, and it happens often. Codes are private to each seller or factory group. Confirm the watch from photos and specs, not from the number alone.
Does a higher number mean better quality?
No. Number ranges track inventory and batch, not grade. One seller may tag a top build as 45100 and a budget build as 45190 in the same catalog.
Should I pay extra for a specific batch?
Only if the seller shows what changed. A revised dial or a thinner case justifies a premium. A new sticker on the same watch does not.
Why do listings hide the factory name?
Factory names draw attention from payment processors and platform moderators. Sellers replace them with codes so the listing stays live. That is also why a code from one shop means nothing at another.