Where to find your watch's reference number
The reference identifies your watch's exact model: its case, its diameter, its finishes. It's what lets us cut every PreserveLayer™ protection to the exact shape of your watch. Here's where to find it, brand by brand, and how to read it.
The easiest way: your papers
Whatever the brand, the reference appears on:
- the warranty card (paper or electronic) or the certificate of origin;
- the purchase invoice;
- the invoice from a service at a watchmaker.
No papers at hand? Send us a photo of your watch (dial, side and caseback): our team will check compatibility for you.
Rolex
Format: 5 or 6 digits, sometimes followed by letters. Example: 126610LN.
Where to find it: on the warranty card. On the watch itself, it is engraved between the lugs at 12 o'clock, under the bracelet: you have to remove the bracelet to read it, which we advise against doing yourself.
How to read it: the digits identify the model and its case (126610 = Submariner Date 41 mm). The letters indicate the bezel or colour (LN, LV, BLNR…). For some models, also check your bracelet, Oyster or Jubilee: the kit comes in two versions.
Tudor
Format: the letter M, 5 digits, letters and a suffix. Example: M79360N-0001.
Where to find it: on the warranty card or the invoice.
How to read it: the 5 digits identify the model (79360 = Black Bay Chrono). The suffix (-0001, -0002…) refers to the dial or bracelet variant.
Omega
Format: 14 digits in six groups. Example: 210.30.42.20.01.001.
Where to find it: on the warranty card.
How to read it: the third group gives the case diameter in millimetres (here 42 mm). That's the key information for choosing your kit.
Cartier
Format: recent references start with W. Example: WSSA0018.
Where to find it: on the warranty card or the invoice.
How to read it: with Cartier, size matters as much as the reference: Small, Medium or Large model. Without papers, measure the width of the case or send us a photo.
Audemars Piguet
Format: 5 digits followed by letters and codes. Example: 15500ST.OO.1220ST.01.
Where to find it: on the warranty card or the certificate.
How to read it: the first 5 digits identify the model (15500 = Royal Oak 41 mm). The following letters indicate the material: ST for steel, OR for rose gold, BA for yellow gold.
See the kits for Audemars Piguet
Patek Philippe
Format: 4 digits, a slash, then digits and letters. Example: 5711/1A-010.
Where to find it: on the certificate of origin or the warranty card.
How to read it: the 4 digits identify the model (5711 = Nautilus). The rest specifies the metal, the bracelet and the dial.
See the kits for Patek Philippe
Panerai
Format: PAM followed by digits. Example: PAM01312 (PAM1312 and PAM01312 refer to the same watch).
Where to find it: on the warranty card.
How to read it: each PAM number corresponds to a specific version. Our kits are organised by collection (Luminor, Luminor Marina, Luminor 1950…): check your watch's collection and diameter.
Breitling, IWC, Zenith, Hublot and other manufactures
The reference appears on the warranty card or the invoice. At IWC, it starts with IW (example: IW371605).
Reference or serial number: what's the difference?
The reference designates the model: it's the same for every identical watch. The serial number is unique to your watch. We only need the reference: never share your serial number publicly.
Got your reference?
Type it into the site search, with or without the letters: we also recognise full references and nicknames (Batman, Hulk, Pepsi…). Each kit is cut to your watch's exact reference: case, crystal, lugs, clasp and bracelet.