The Tudor Pelagos FXD “Alinghi Red Bull Racing” is one of those watches that feels purpose-built the second you put it on. It has the no-nonsense Pelagos attitude, but with that regatta energy baked in, from the color accents to the whole “ready to get knocked around” vibe. And because it’s an FXD, the strap isn’t just an accessory. It’s basically part of the watch’s identity.
If you wear yours the way it begs to be worn, straps will matter more than usual.
Strap size and fit guide for the FXD 25707KN
Your Pelagos FXD “Alinghi Red Bull Racing” (Ref. 25707KN) comes in 42mm, and the lug width is 22mm. That’s the number you cannot mess up.
Here’s the easy part: on Helvetus product pages for this model, you don’t need to select anything by default. The straps linked below are made specifically for the Tudor Pelagos FXD fit, so you’re not playing guessing games with adapters, weird gaps, or “close enough” sizing. The main thing is simply making sure you’re buying for the Pelagos FXD and sticking to 22mm.
If you’ve ever ordered a strap that technically fit but looked slightly off (twist at the lugs, odd stance, or a buckle that never sat comfortably), this is the watch where those little annoyances get old fast.
The best strap choices for the Pelagos FXD “Alinghi Red Bull Racing”
With this particular FXD, I like straps that keep the watch looking fast and intentional. The case is sporty, the whole theme is nautical, and the design is already “loud” enough in a subtle way. You want straps that look like they belong there, not straps that fight for attention.
Start with the obvious winner: Navy Blue.
This is the color that makes the FXD feel most at home. It plays perfectly with the maritime side of the watch and keeps things clean and focused. On wrist, navy also has a nice trick: it looks crisp in daylight and deeper, almost inky, indoors. If you want one strap that feels like the default for this model, it’s this.
Navy Blue Tudor FXD Strap
If you like a bit more texture in the look without going “fashion strap,” the Navy Blue/Grey option is the sleeper pick.
The grey softens the overall appearance and makes the watch feel slightly more technical, almost more instrument-like. It’s still sporty, but less “sailing team uniform,” more “serious kit.” I also find this combo wears well with neutral clothes when you’re not in full summer mode.
Blue/Grey Tudor FXD Strap
Then there’s the one that’s pure fun: Green/Red.
This strap is for days when you want the FXD to feel like the special edition it actually is. The colors pull the eye, but because the watch is still a rugged diver at heart, it doesn’t come off as delicate or dressy. It’s the strap I’d wear on a weekend, on holiday, or any time you want the watch to feel less “tool” and more “occasion.”
Green/Red Tudor FXD Strap
And if you’re the type who changes straps depending on mood (respect), you’ll find more color options in the full collection. The FXD takes color surprisingly well, as long as the strap still looks purposeful.
All Tudor FXD Straps
Buying the right Pelagos FXD strap from Helvetus, without overthinking it
The nice thing about shopping straps specifically for the Pelagos FXD is you can avoid the usual trial-and-error cycle. Stick to the FXD-specific options, keep your 22mm lug width in mind, and you’re good. If you want to browse beyond the three picks above, the Pelagos FXD collection page is the easiest way to see the full range in one place, with styles that are made to suit this model’s shape and stance.
Straps for Tudor FXD
A clean closing note
A watch like the Pelagos FXD gets worn hard, so I’m picky about straps: they need to feel right, fit right, and hold up over time. That’s why I like that Helvetus builds these straps around the Pelagos FXD specifically, backs them with a lifetime warranty, and keeps the buying experience simple with free worldwide shipping and no import costs. Add the fact that more than 30,000 customers worldwide already trust Helvetus, and it makes choosing a strap feel less like a gamble and more like a straightforward upgrade.
