Factories guide
VSF Serial Codes (2026)
Learn the latest serial prefixes and clasp codes for VS Factory watches to verify authenticity and avoid getting scammed.
Bait-and-switch is the most common scam in the replica watch market. Shady dealers will often sell you a cheap $150 AAA factory watch and claim it is a premium VS Factory (VSF) product. The most reliable way to verify your watch is VSF is by checking its serial prefix and clasp codes.
Why VSF Serial Codes Matter
Each premier replica factory sources cases and bracelets from specific metal stamping facilities, which assign distinct laser-engraved serial number prefixes (on the inner rehaut at 6 o'clock) and clasp codes (inside the folding buckle). By memorizing these codes, you can instantly tell if your watch is a genuine VSF.
2026 Active VSF Serial Prefixes by Model
Here is the updated list of authentic VS Factory serial number prefixes for our most popular references:
| Model / Reference | Case Serial Prefix (Rehaut) | Clasp Code (Inside Buckle) |
|---|---|---|
| Submariner 41mm (126610LN / LV) | 2R8 / Q6T | 1LQ / 3LT |
| Submariner 40mm (116610LN / LV) | S39 / S29 / S19 | 1ZQ / ST9 |
| Datejust 41mm (126334 / 126300) | K9N / Z8Y | F6Y / OR7 |
| Datejust 36mm (126234) | 88D / 7E3 | K7Y |
| Yacht-Master 42mm (226659) | 3E5 | 1LQ |
How to Read the Rehaut Engraving
Look closely at the 6 o'clock position on the inner steel ring (rehaut) under the sapphire crystal. You will see a laser-etched serial number consisting of an alphanumeric prefix followed by several digits. For example, if you bought a Submariner 126610LN, the serial number should begin with 2R8 (e.g., 2R8XXXXX). If it has a completely random prefix like AAA, N6, or F8, it is not a VSF.
How to Verify the Clasp Code
Open the clasp of the watch and look at the polished inner blades. In the top right or center, there is a small laser-engraved code. For a VSF Submariner 41, the code is typically 1LQ. Scammers often forget to match clasp codes to the factory case serials, making this an excellent secondary check.
What to Check Beyond Codes
While serial codes are an excellent indicator, advanced clone counterfeiters have begun engraving fake VSF serial codes on lower-quality replica cases. To be 100% sure, always check:
- The Crown Action: VSF's VS3235 movement winds incredibly smoothly like butter, without any grinding feel.
- Date Wheel Alignment: VSF datewheels are centered perfectly with a deep black, raised 3D ink print.
- Bezel Action: On a Submariner, the click must be crisp (120 clicks) with zero backplay or mushiness.
By ordering from first-tier trusted dealers like TimeMax, we guarantee your watch is sourced directly from VSF and provide clear, high-resolution QC photos of the serial and clasp codes before shipping.
Order with a real person, protected end to end
We are a first-tier dealer for VSF, ARF, Rich Factory. Every order is confirmed with our team, paid by PayPal Goods & Services, QC-filmed in 3–5 days for your approval, then shipped by FedEx for $40. The Optional Presentation Box & Accessory Set ($20) is an optional add-on and is not included in the watch base price.
