Tissot Sideral

No one at TBC knows what “sideral” actually means.  So we did what anyone would do in this situation – we Googled.  According to Merriam-Webster, the word means “emanating from the stars and especially from stars held to be malefic.”  Right.  That was helpful.  Let’s take a look at Tissot’s take on a lightweight aquatic-themed sports watch then, shall we?

Photography by Ronald Chew

by Terence Tee

  • August 3, 2023

Given the PRX’s runaway success, who would blame Le Locle for going back to the archives to look for more wins? The Tissot Sideral was first introduced in (checks notes) 1969, which is everyone’s favourite year.  It was a fibreglass affair, which meant it probably weighed as much as an IG influencer with a swimwear sponsorship deal.

The new Sideral is brilliant, but probably not in the way you’d expect. See, it has retained the regatta countdown gauge which we at TBC can’t tell you much about frankly, because none of us know anything about yachts. But without this little detail, the dial would have looked decidedly bland and pedestrian.

Speaking of details, Tissot provided a side-by-side comparison with the fibreglass original. And just like what they did with the PRX, Tissot retained all the elements that made the original Sideral a playful and durable sports watch. Instead of fibreglass, the modern version has a forged carbon case. The familiar Powermatic 80 movement powers the range of three colours (red, yellow and blue), with a transparent caseback for you to view the new Tissot skeletonised rotor.  The case itself is precisely made, with top edges that are certainly sharp, not not sharp enough to cut. You’d be surprised to know that for a forged carbon watch, the Sideral has some welcome heft to it.  For reasons unknown, the blue Sideral is slightly special – it has a blue tinged forged carbon case.  It is the only colour way with this characteristic.  The other two have normal forged carbon finishes.

One thing to note about the Sideral’s PVD-coated stainless steel bezel is that the bezel action is quite robust and audible.

Alright, with most of the normal stuff out of the way, let’s talk about the one thing that TBC is geeking out over about this watch – the straps. We don’t understand why Le Locle is not making a bigger deal about the clever silicone rubber straps that come on the Sideral.  We came for the watch, but stayed for the straps.  First of all, the straps are buttery soft and malleable. It is the locking mechanism that made us bring out the blue ribbon. Allow us to expand on this. The straps have regular, well-placed holes, not unlike tropic dive straps. This arrangement allows your skin to breath and water to escape. It reduces the amount of strap material touching your skin and makes the strap far more comfortable to wear. In every aspect, function dictates form on a tropic dive strap. Tissot’s take on it is ingenious. The holes in the middle double as adjustment holes. Which means they will fit even the skinniest of wrists. We’d expect strap makers to start making their versions of these straps soon.

Le Locle has really been going at it over the last couple of years, with all guns blazing. We hear September is going to be a good month. Can’t wait to see what else they have up their sleeves.


ReferenceT145.407.97.057.00 (yellow) / T145.407.97.057.01 (blue) / T145.407.97.057.02 (red)
Case MaterialForged carbon (body) and PVD steel (bezel)
Case Width41mm
Case Height14.5mm
Lug Width20mm
MovementPowermatic 80.111

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