Introducing: The Synchron Sealab Ti300M
We haven’t heard much from Synchron since the summer of 2023, but the beginning of 2026 has brought good tidings. The new Sealab Ti300M sports a familiar look, yet it brings modern features appreciated by collectors. We’ll follow this introduction up with a hands-on review next month. For now, though, let’s take a brief look at this intriguing release.
Historically speaking, Synchron was a conglomerate of several Swiss brands that came together in the late 1960s. Doxa, Cyma, and Ernest Borel were once part of the group and carried a distinctive three-part logo. Rick Marei, a well-known figure in the world of dive watches, resurrected the brand in 2021 and immediately made a statement with the Military. Since then, he’s introduced several watches in collaboration with Poseidon, a Swedish producer of dive equipment. Now, we’re ready for the Sealab Ti300M. The watch’s theme stays on point, but there are some significant updates.
The Synchron Sealab Ti300M
Synchron’s new Sealab Ti300M features a brushed Grade 5 titanium case, a notable departure from the brand’s previous stainless steel releases. Perhaps most importantly, the watch has a 41mm diameter and a 45mm lug-to-lug, but it boasts an impressive 11.9mm profile. This is a significant reduction compared to the 14mm-thick steel models. That said, the 300m depth rating remains. A screw-down crown bolsters this capability.
A flat sapphire crystal with an antireflective coating gives a clear view of the dial. Surrounding this is a 120-click unidirectional bezel with no-decompression scale. Sawtooth knurling ensures that it’s easy to grip and turn. Regarding the straps, a 20mm rubber Tropic is standard, and an ISOfrane is optional.
A semiglossy orange dial
The Sealab Ti300M sports an orange dial with applied indexes and X1 Super-LumiNova. This luminous material is also present on the hour, minute, and seconds hands. In the light, it appears white, but it emits a soft green glow in the darkness. Unsurprisingly, a black-on-white date window appears at the 3 o’clock position. Of course, the watch is nearly identical to a vintage Doxa 300. Is this controversial? Perhaps it is, but I think one could make a strong argument that a watch of this style with the Synchron name and logo has legitimacy.
An impressive movement inside
Similar to vintage references, the Sealab Ti300M has an all-metal case back with the Synchron logo. Underneath, there’s a pleasing movement inside. Rick chose to use the La Joux-Perret G100, but in this case, it’s the Soigné, or top-grade, version. It is adjusted to four positions. It also has a 4Hz frequency (28,000 vibrations per hour) and offers 60 hours of power reserve. Naturally, as a modern caliber, it has a quick-set date function and hacking seconds.
The Sealab Ti300M offers impressive value
The Sealab Ti300M is currently available for pre-order on the brand’s website and is a limited edition of 500 pieces. The affordability is compelling, with pre-order pricing of US$990 in January. Any remaining models will then list for US$1,390. Deliveries begin in February 2026. Considering the case material, reduced thickness, and impressive movement, this looks like an incredibly attractive deal and seems like a real winner. While I don’t expect any to be left in the online shop by the time we go hands-on, we can’t wait to share our in-person thoughts.
