Doxa

Sea Emerald

Reference Number :

822.70.131.26-N

Series : SUB 300 Carbon

Retail: $3,640

(As of: 05/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Doxa. If you are interested in selling this watch to us, you can contact us here.

Quick TakeForget your run-of-the-mill dive watches; the DOXA SUB 300 Carbon Sea Emerald is something else entirely. It’s like strapping a piece of advanced marine tech to your wrist, but one that also happens to look ridiculously cool. That forged carbon case isn't just for show – it makes the watch surprisingly light, yet tough as nails, ready for actual underwater action or just navigating the urban sprawl. The vibrant emerald sunray dial absolutely pops against the dark, marbled carbon, shifting in the light like sun dappling through kelp forests. Inside beats a COSC-certified heart, a Swiss automatic movement promising accuracy whether you're timing a dive ascent or just trying not to be late for dinner. It’s got the 300-meter water resistance, the screw-down crown, the unidirectional bezel – all the serious dive cred. But the blend of the almost futuristic carbon with that rich green dial gives it a unique, almost rebellious personality. It respects its heritage but lives firmly in the now, equally at home deep below the waves or paired with sharp streetwear.

DescriptionEngineered for demanding underwater environments, the SUB 300 Carbon Sea Emerald integrates advanced materials with proven mechanical performance. The primary casing structure utilizes forged carbon, selected for its exceptional strength-to-weight ratio, providing durability without compromising wearer comfort during extended use. This case exhibits dimensions of 42.50 mm by 45.00 mm, with a vertical profile measuring 13.40 mm. Augmenting the integrity of the housing is a pressure-resistant chamber constructed from titanium, which also forms the screw-down case back, ensuring the protection of the internal mechanism under substantial hydrostatic pressure. Water resistance is certified to 30 atmospheres, equivalent to a depth rating of 300 meters or approximately 984 feet. A screw-down crown mechanism further enhances the seal against water ingress. The timekeeping display is protected by a domed, scratch-resistant sapphire crystal, treated with an anti-reflective coating to maximize legibility under various lighting conditions, a design element referencing the historical plexiglass crystals of the original SUB 300 models. Operational dive timing is facilitated by a unidirectional rotating bezel, also crafted from forged carbon, featuring dive time gradations marked in meters.

Powering the SUB 300 Carbon Sea Emerald is a Swiss-manufactured mechanical automatic movement, distinguished by its self-winding capability and prestigious COSC (Contrôle Officiel Suisse des Chronomètres) certification, guaranteeing adherence to stringent chronometric standards for precision and reliability. This calibre operates at a frequency of 28,800 vibrations per hour (4.0 Hz) and provides a power reserve of approximately 38 hours when fully wound. The movement architecture incorporates decorative finishing applied by DOXA. Time indication is provided through central hour, minute, and second hands, complemented by a date aperture positioned at the 3 o'clock location on the dial. The Sea Emerald dial itself features a sunray finish, enhancing visual depth. All dive-critical indices and hands are treated with Super-LumiNova® luminescent material, ensuring optimal visibility in low-light or submerged conditions. Attachment to the wrist is achieved via either an FKM rubber strap or a NATO strap, both utilizing a 20.00 mm lug width. The FKM rubber option includes a black PVD-coated folding clasp, embellished with the Doxa fish symbol and incorporating a ratcheting wetsuit extension for adjustability over dive gear. The NATO strap alternative fastens with a pin buckle and features quick-release spring bars for convenient interchangeability.

GenderMen

SignaturesDOXA

Country of OriginSwitzerland

Case Size42.5 mm

MovementAutomatic

FunctionsHours, Minutes, Seconds, Date

Power Reserve38 Hours

Case MaterialsCarbon

Bezel MaterialsCarbon

Lug MaterialsCarbon

Case BackSolid

CrownScrew Down