An adventurous spirit with modern embellishments

In 1968, DOXA launched the SUB 300T Conquistador, the first general public diver's watch equipped with a helium release valve. 50 years later, the SUB 300β sports watch combines DOXA's pioneering functionality with style, maintaining foundational tool watch features in a redesigned 42.5 mm diameter case, now slimmer at 11.95 mm. The black ceramic bezel and screw-down crown enhance its sport-chic character, complemented by a sophisticated sunburst dial finish. Available with an FKM rubber strap or stainless-steel "Beads of Rice" bracelet, both featuring a ratcheting folding clasp, the watch is water-resistant up to 300 meters. With a scratch-resistant sapphire crystal, Swiss automatic movement, and a power reserve of around 38 hours, the SUB 300β is engineered for safety and exploration.

Specifications

• Movement: Swiss mechanical automatic, self-winding
• Case: 42.5mm stainless steel (11.95mm thick)
• Features: Sapphire crystal, unidirectional rotating bezel, helium release valve
• Dial: Stamped wave pattern & painted luminous hour markers
• Bezel: Unidirectional rotating bezel in ceramic
  
• Power Reserve: 38 hours
• Frequency: 28,800 vph (4.0 Hz)
• Functions: Hours, minutes, seconds and date
• Crown: Screw-down
• Case Back: Stainless steel, screw down
• Water Resistance: 30 ATM / 300 meters / 984 feet
• Bracelet: Stainless steel bracelet "Beads of Rice", folding clasp with ratcheting wetsuit extension