Spotting Fakes: Tudor Pelagos 25600TN/TB & 25407N
Learn how to authenticate Tudor Pelagos models 25600TN, 25600TB, and 25407N with expert tips on identifying super-clones.

The Tudor Pelagos is a highly sought-after dive watch, renowned for its robust design and technical prowess. As of 2026, the Pelagos models 25600TN, 25600TB, and the newer 25407N are frequently targeted by counterfeiters, particularly the high-quality 'super-clones' emerging from manufacturing hubs in Asia. These replicas often match the weight and basic movement characteristics of the genuine articles, making them difficult to discern by casual observation. However, by focusing on micro-details such as printing depth, alignment of applied indices, and specific movement characteristics, discerning buyers can still identify authentic pieces. The Pelagos 25600 series, introduced in the mid-2010s, features the in-house caliber MT5612, while the Pelagos 39 (25407N) employs the MT5400, reflecting Tudor's ongoing innovation. Understanding these distinctions is crucial in avoiding costly mistakes.
Caliber Verification
The Tudor Pelagos 25600TN and 25600TB models are powered by the in-house caliber MT5612. This movement is known for its 70-hour power reserve and COSC certification. The newer Pelagos 39 (25407N) uses the MT5400, which is slightly smaller to fit the reduced case size but maintains similar performance standards. To authenticate, examine the movement through the caseback if possible, or consult the manufacturer's service literature for specifications. Be wary of movements that deviate from these calibers, as super-clones may use ETA-derived movements that do not match the genuine article's specifications.
Caseback Design
The Tudor Pelagos 25600 series features a solid titanium caseback, engraved with the Tudor shield and model details. In contrast, the Pelagos 39 (25407N) also has a solid caseback but may feature updated engravings reflecting its newer release. Ensure that the engravings are sharp and precise; any blurriness or unevenness is a red flag for counterfeits. Genuine models will not have a display caseback, so any Pelagos with such a feature should be considered suspect.
Bezel Material and Construction
The bezels on the Pelagos 25600TN and 25600TB are constructed from ceramic, known for its scratch resistance and deep colour. The 25600TN features a black bezel, while the 25600TB has a striking blue bezel. The Pelagos 39 (25407N) also utilizes a ceramic bezel, but its colour and finish may differ slightly due to its newer design. Ensure that the bezel clicks smoothly and aligns perfectly with the dial markers; misalignment or rough operation can indicate a counterfeit.
Dial and Printing Details
Authentic Tudor Pelagos dials are known for their crisp printing and precise application of indices. The 25600 series features a matte dial with applied markers filled with Swiss Super-LumiNova. The Pelagos 39 (25407N) continues this tradition but may have subtle design updates. Examine the depth and clarity of the printing; genuine models will have sharp, well-defined text and indices. Any smudging or misalignment is a tell-tale sign of a fake.
Bracelet and Clasp Codes
The Tudor Pelagos models are fitted with titanium bracelets, known for their durability and lightweight feel. Inside the clasp, you should find a code that matches the model's published code from manufacturer service literature. The bracelet should also feature a micro-adjustment system for a perfect fit. Check for smooth operation and precise engineering in the clasp mechanism; any roughness or inconsistency can indicate a counterfeit.
Red Flags at a Glance
- Display caseback on Pelagos → fake
- Misaligned bezel markers
- Blurry or uneven caseback engravings
- Non-ceramic bezel material
- Smudged or misaligned dial printing
FAQ
What movement is in the Tudor Pelagos 25600TN?
The Tudor Pelagos 25600TN uses the in-house caliber MT5612, offering a 70-hour power reserve.
Does the Pelagos 39 have a display caseback?
No, the Pelagos 39 (25407N) features a solid caseback with engraved details, not a display caseback.
How can I verify the bracelet on a Tudor Pelagos?
Check for a code stamped inside the clasp that matches the model's published code from manufacturer service literature, and ensure the micro-adjustment system works smoothly.
Final Word
Authenticating a Tudor Pelagos requires attention to detail and an understanding of the specific characteristics of each reference. While super-clones can mimic many aspects of the genuine watch, they often falter in the finer details such as engraving quality and dial printing. If in doubt, seek a second opinion from an authorised dealer or a trusted independent watchmaker to ensure the authenticity of your purchase.
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