Tudor
Pelagos (first generation)
25500TN
Tudor's titanium-cased diver that redefined the Pelagos line from the outset.
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Overview
The Tudor Pelagos ref. 25500TN represents the first generation of Tudor's flagship professional diver, introduced in 2012 as a bold statement of the brand's renewed ambitions. Housed in a 42 mm titanium case, it combined serious dive-watch credentials with a lightweight, skin-friendly construction rarely seen at its tier. The matte black dial reinforces its tool-watch character, keeping legibility and function at the fore.
History
The Pelagos line debuted in 2012 as Tudor repositioned itself as a serious watchmaker in its own right, distinct from its Rolex parentage. The 25500TN was among the inaugural references, pairing a grade-5 titanium case and bracelet with a helium escape valve and impressive water resistance suited to professional diving. Power came from the reliable ETA cal. 2824, a movement widely respected for its robustness and serviceability. Production of this first-generation configuration ran until approximately 2015, when Tudor transitioned the line toward in-house movements, making the 25500TN a historically significant marker in the brand's modern evolution.
Notable points
- The 42 mm titanium case makes the 25500TN notably light on the wrist compared to steel dive watches of similar proportions.
- The ETA cal. 2824 movement, while not in-house, was a proven and widely serviced workhorse that underpinned the watch's tool-watch reliability.
- A matte black dial with luminous indices and hands prioritises legibility in low-visibility underwater conditions.
- The first-generation Pelagos introduced Tudor's distinctive self-adjusting folding clasp on the titanium bracelet, accommodating wear over a wetsuit.
- As the watch that launched the Pelagos name, the 25500TN holds a foundational place in Tudor's contemporary collector history.
