DOXA SUB 300 Ti5 Professional Automatic – 823.50.351.21

The DOXA SUB 300 Ti5 Professional combines the legendary SUB 300 architecture with the exceptional strength, lightweight comfort, and corrosion resistance of Grade 5 titanium. Measuring 42.50 × 45.00 mm with a thickness of 13.40 mm, its titanium case, screw-down crown, and screw-in caseback deliver an impressive strength-to-weight ratio and comfortable wear.

Built for serious underwater performance, the SUB 300 Ti5 Professional is water-resistant to 300 meters (984 feet) and features DOXA’s patented unidirectional rotating bezel with its dual depth-and-dive-time scale. Beneath the domed, anti-reflective “glass box” sapphire crystal, Super-LumiNova® enhances visibility in low-light conditions, while the signature oversized orange minute hand provides exceptional readability against the vibrant orange dial.

Powering the watch is a COSC-certified Swiss automatic chronometer movement, operating at 28,800 vibrations per hour (4 Hz) with approximately 38 hours of power reserve. Hours, minutes, seconds, and date functions provide practical versatility alongside its professional diving capabilities.

Completing the bold design is a matching orange woven-texture Dive Flex rubber strap secured by a Grade 5 titanium pin buckle. Lightweight, durable, and unmistakably DOXA, the SUB 300 Ti5 Professional is an outstanding choice for divers and collectors seeking a distinctive timepiece with serious underwater credentials.