Sinn U50 vs. Tudor P39

Go with Tudor. You’ll have access to more service centers, and you get an in-house chronometer grade movement that’s antimagnetic. The Sinn uses cookie cutter movements. With ceramic ball bearings, the Pelagos has the best unidirectional 60 click bezel on the market. Those same bearings made of ceramic are found in the clasp, including for the wet suit extension. T-fit, an easy adjust system requiring no tools. Fully lumed brushed ghosted ceramic bezel.

I owned the Sinn U1 but i sold it and bought the U50 after it was released.

I have not regretted that decision. It sits much better on the wrist but it still looks the part. After 4 years and almost used it daily. Not a single scratch on the case or crystal. The clasp have some light microscratches, but otherwise it looks like the day i bought it.

I have not owned a Tudor. Though i think it is probably a better watch. But there is also a diffrence in price.

I would also vote for the Sinn. I own it since almost 3 years and thanks to the tegimented Case, Bezel and Bracelet I'm also happy to report, that I do not have a single scratch on the watch. The clasp is far superior on the Tudor, no doubt. So if you need the comfort of T-Fit, the Sinn probably won't make you that happy. The bezel action is also much nicer on the Tudor same as the Lume. On the contrary, the Sinn is a bit bigger, better specs and also very slim in profile. My U50 runs at +2 secs per day and is therefore excellently regulated.

Handeled both already but don't own any. I would go with Tudor as there are so many benefits.

Tudor is more versatile, refined and bracelet with T-fit clasp is on another level. Movement is better with longer power reserve. I would love to see it in Ti grade 5. It also has 5 years warranty compared to 2 years at Sinn. You also get a complementary rubber strap.

Sinn has only tegiment bezel, not the whole case ( more expensive version is whole case ). But probably less prone to scratches than Ti grade 2. Also that crown at 4 on Sinn is a bit of a design miss IMO. Don't like outer anti-reflective coating too, especially on tool watch. WR is greater but 200m or 500m, who cares, both are enough for any aquatic occasion.

But it has to be said that Tudor is almost 2x more expensive. So ultimately it comes down to design and budget. If those two are equal/no difference I would go with Tudor.

So my close friend owns the Sinn and I own both a BB58 and a Ranger which have similar cases although not titanium.

Sizing. The Sinn will be slightly larger case but lug to lug is about the same and it might be slightly thinner. Doesnt have the slab side that the Tudor has so it may visually look thinner.

Bezel action. Tudors bezels are unmatched at sub $5k. The Sinn bezel requires a bit more twist as it’s a bit tighter but still a good action.

Crystal legibility: Sinn. No question. It looks like it’s not even there.

Bracelet. No doubt it’s the Tudor. The bracelet and t clasp can’t be beat for the $

Materials. Titanium is lighter and you can compare apples to apples with a Sinn T50 that is the U50 case but titanium. One small caveat to keep in mind the Sinn has a tegimented hardening option that is no joke. You can beat on that thing and will rarely see wear. So if you are using the watch the Sinn with that case might be a better option

Movement. Tudor uses an “in house” movement with better power reserve but the Sinn is more off the shelf sellita that will be 1/2 the cost to maintain. Give or take depending on if that matters.

Pick what speaks to you more design and overall package. Both are great and the Tudor is a better watch but IMO it’s not 2x better

This is all good input. I'm in the market for the U50 myself, currently having trouble deciding between the steel (U50) vs black bezel (U50 SDR). Tegimented is probably a given, but I can't decide on the color. Will probably end up buying one and the bezel for the other... why buy 1 when you can buy 2 at twice the price?

I've tried both and enjoy both (although not enough to have owned either) Honestly both are super tooly and legible. I do think the pelagos is a bit more refined, made to be worn in almost all occasions. The Sinn has excellent finish quality, but you feel the design intent when you're wearing it much more than the pelagos, which is more understated.

The Sinn bracelet certainly isn't as refined as the Tudor, but otherwise it's a matter of aesthetic preference

Sinn junkie here 🙋🏼‍♂️although I really like the blue Pelagos

pelagos for me. Its way more versatile.

I was looking at a Sinn U1 or the Tudor FXD. I got the FXD but I still want a U1. I feel that the FXD is perfect watch for me. The U1 is just a cool watch.

I’ve only had the P39 for a couple months, but it’s really as good as it gets for the price. I’ve also dressed it up and down without thinking twice. If you have the funds to go for it - highly recommend.

Thanks for the input everyone. The key take away seems to be as @Tacomawv said:

The Tudor is for many the most versatile watch, whilst the Sinn is the cool watch. So, in order to simplify - it all boils down to versatility vs. cool (aka I don't give a f...). I don't own so many IDGAF-watches, so maybe the U50 fits that bill.

I think everyone before me made the right points already. One last thing I could add:

The U50 looks more unique than the Tudor, which although more refined, has the typical diver-look, immortalized by the Rolex Submariner.

I've had both on my wrist and they are equally perfect. I suggest you trying them before making the decision. But you'll probably end up wanting both, anyway :)

I agree the uniqueness of the Sinn speaks volume in it's favour.

The P39 is more of a Tudor Submariner to me than the Role Submariner, as the Tudor started to use the snowflake hands and square markers in conjunction as part of the re-design for the Marine National collaboration in 1969.

I have the P39 already and if I get the Sinn, it's because - as you said - the U50's uniqueness.

Sinn, just way cooler.

Plus not got the stigma of being associated with Rolex...