Tudor · Pelagos

Strap for Tudor Pelagos 25807KN

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
Reference25807KN
FamilyPelagos
MovementTudor caliber MT5813 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer

Recommended spring bar

Modern Tudor 22mm spring bars — factory specification

Technical match for lug width and diameter · lug 22 mm · Ø 1.8 mm

All Tudor spring barsOpen →

Straps for the Pelagos 25807KN

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Pelagos 25807KN, seen from the bench

The Pelagos ref. 25807KN is a diving chronograph with a 42mm case in titanium and stainless steel. It features the automatic Tudor MT5813 caliber with a column-wheel and chronometer certification. The 22mm lugs complete the structure with carbon elements.

Frequently asked questions

What is the lug width of the Tudor Pelagos 25807KN?

The Tudor Pelagos 25807KN features a lug width (ansa) of 22 millimetres. This dimension is model-specific and must be matched precisely on any aftermarket strap to ensure proper fitment to the case lugs without excessive play. Measurement is taken digitally between the two lateral pins.

Which strap pairs best with the Tudor Pelagos 25807KN?

Black or dark brown alligator represents the most sophisticated choice, enhancing the professional aesthetic of the titanium case. For frequent diving use, natural rubber provides superior resistance to moisture and corrosive saltwater agents. Those seeking versatility choose vegetable-tanned calf leather, which develops rich patina and character over time.

How do I change the strap on my Tudor Pelagos 25807KN?

Strap replacement involves removing the two lateral pins (lugs) using a spring-loaded extraction tool or pin pusher. Position the watch on a soft surface, gently push the first pin toward the centre, extract it, and repeat for the second pin. Align the new strap's apertures with the pin positions and reinsert the pins, ensuring they are fully seated and locked.

Is a 22mm aftermarket strap compatible with the Tudor Pelagos 25807KN?

Yes, any 22mm strap constructed to international standards remains compatible with the 25807KN. Verify that the strap thickness does not exceed the lug contact area; artisanal straps are engineered to remain under 4.5mm thickness, preserving the original ergonomics and proportion of the watch.

How long does a leather strap last on a Tudor Pelagos 25807KN?

A quality artisanal alligator or calf leather strap, with proper maintenance (air-drying after water exposure, occasional cleaning, annual conditioning), guarantees 2–3 years of daily wear before replacement is necessary. Longevity depends on humidity exposure, climate extremes, and frequency of use. A rubber strap remains functional for 3–4 years if stored away from excessive heat.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only