Synchron Ti300M Poseidon Deep Black – Titanium Dive Watch with 3D-BRYTE Technology Indices
The Synchron Ti300M Poseidon Deep Black shares the platform of the Ti300M Poseidon – Grade-5 titanium 41mm case, Swiss Sellita SW200-1 automatic, 300m water resistance, 50-gram head, 11.9mm profile – now in a matte black dial with a new feature: 3D-BRYTE technology indices, three-dimensional luminous pieces cut in the shape of each index and fixed to the dial with two pins each, giving the dial extreme night-time luminosity. Limited to 300 pieces per year.
The dial: matte black with 3D-BRYTE technology indices
This is what makes the Deep Black its own watch: the hour indices are not printed and not applied lume plots. They are 3D-BRYTE technology indices — three-dimensional luminous pieces, cut in the shape of each index and fixed to the dial with two pins each for permanent alignment. The extra luminous mass makes them read brighter in the dark, and the sculpted-piece construction makes them read as distinct objects on the dial in daylight – almost like small ceramic tiles pinned to a matte black plane. The result is a dial that reads as a purposeful tool at depth and reads as sculpted jewelry at a dinner table. Yellow accents on the “Ti 300M POSEIDON” wordmark and the Poseidon crest carry the visual thread of the yellow-dial edition into a darker, more restrained package.
The titanium case, unchanged
The 41mm Grade-5 titanium case, caseback, and bezel are shared with the yellow-dial Ti300M Poseidon. That means the same 50-gram head weight, the same 11.9mm profile, the same 45mm lug-to-lug, and the same 20mm lug width. It is the same watch to wear – lightweight enough that after the first hour you forget it is there, thin enough to sit under a shirt cuff, warm to the skin the way titanium is.
The movement: Sellita SW200-1
Inside runs the Swiss-made Sellita SW200-1 automatic caliber, finished to :
- 38-hour power reserve
- 4 Hz (28,800 vph) beat rate
- Hacking seconds for precise time-setting
- Automatic winding with bi-directional rotor, plus manual wind
- Adjusted in multiple positions in Switzerland
Full specifications
- Edition size: Limited to 300 pieces per year
- Case material: Grade 5 Titanium (case, caseback, bezel)
- Case diameter: 41mm
- Lug-to-lug: 45mm
- Thickness: 11.9mm
- Weight: ~50 grams (head only)
- Dial: Matte black with 3D-BRYTE X1 technology indices (3D SuperLuminova pieces cut in the shape of each index, fixed to the dial with two pins each), yellow “Ti 300M POSEIDON” and Poseidon crest accents
- Crystal: Anti-reflective sapphire
- Bezel: 120-click unidirectional rotating dive bezel
- Crown: Screw-down
- Caseback: Screw-down, engraved
- Water resistance: 300 meters (990 ft)
- Movement: Swiss Sellita SW200-1 automatic
- Power reserve: 38 hours
- Frequency: 4 Hz (28,800 vph)
- Strap: 2 (black and yellow) Genuine Tropic® rubber included
- Packaging: Aluminum dive canister
Pre-order pricing and delivery
Pre-order price $1,490 (regular retail $1,690). $500 deposit option available at checkout, with the balance due before shipping. First batch ships October 2026 // Second batch ships January 2027.
Compare with other Synchron dive watches
Service and warranty
Every Synchron Ti300M Poseidon Deep Black carries a manufacturer warranty and is supported by the Synchron service network – see Service & Repair.
Shipping
Ships insured worldwide via UPS. North America and Europe: 3-4 business days. All other destinations: 5-10 business days. See the Return Policy for pre-order vs. standard sale terms.