Introducing: The Synchron Sealab Ti300M

January 21, 2015

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 Ti300MSynchron 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 dialThe 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 insideSimilar 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 Soigne, 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 valueThe 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.Watch specifications Brand Synchron Model Sealab Ti300M Dial Semiglossy orange, applied indexes with X1 Super-LumiNova, black text and markings, and date windowCase Material Grade 5 titaniumCase Dimensions 41mm (diameter) 45mm (lug-to-lug) 11.9mm (thickness)Crystal Sapphire with antireflective coatingCase Back Grade 5 titanium, screw-in Movement La Joux-Perret G100 (Soigne grade): automatic with manual winding and hacking seconds, 28,800vph (4Hz) frequency, 60-hour power reserve, 24 jewels, tungsten rotor, adjusted in four positionsWater Resistance 300 metersStrap Orange Tropic rubber (20/16mm) with pin buckle / Optional ISOfrane rubber strap with pin buckleFunctions Time (hours, minutes, seconds) date, unidirectional 120-click bezel for calculating and monitoring no-decompression dive timesPrice US$990 (introductory) / US$1,390 (regular price)Warranty Two yearsSpecial Note(s) Limited edition of 500 pieces, shipping in February 2026