Sea Emerald

In 1969, DOXA launched the SUB 300T Conquistador, the first general public diver's watch equipped with a helium release valve. 50 years later, the new SUB 300T presented in September 2019 pays tribute to the groundbreaking original.

This 3-hand diver's watch, available in 8 dial colors, combines the aesthetic genes of the SUB 300T Conquistador with the technical refinements that define the high-performance diver's watch of today. Constructed from 316L stainless steel of the highest quality, the SUB 300T has a diameter of 42.5mm and a scratch-resistant sapphire crystal with an anti-reflective coating. Rated to withstand pressures up to 120 bar, this diver is effectively waterproof to a depth of 1,200 meters and features the patented unidirectional rotating bezel with an integrated no-decompression dive time calculator. All elements providing dive-relevant information are highlighted with a Super‑LumiNova® luminescent insert to ensure optimal legibility underwater. The bracelet is 316L stainless steel and features a folding clasp with the DOXA fish symbol.

MOVEMENT

Swiss mechanical automatic, self-winding
Power reserve 38 hours
Frequency 28,800 vph (4.0 Hz)
Decorated by DOXA

CASE

Stainless steel case
Diameter 42.50 mm x 44.50 mm
Height 13.65 mm
Screw-down crown
Water resistance 120 ATM / 1,200 meters / 3,937 feet
Stainless steel, screw down case back

INDICATIONS

Hours, minutes, seconds
Date

FEATURES

Sapphire crystal
Unidirectional rotating bezel (in feet)
Helium release valve

BRACELET / STRAP

Stainless steel bracelet "Beads of Rice", folding clasp with ratcheting wetsuit extension
NATO strap, pin buckle, quick release spring bars
Lug width 20.00 mm

DIAL

Sunray dial