Doxa

Aquamarine

Reference Number :

822.70.241.25

Series : SUB 300 Carbon

Retail: $3,990

(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 heavy steel anchors; this SUB 300 Carbon in Aquamarine feels like strapping a piece of the future to your wrist. The forged carbon case isn't just light, it's practically gravity-defying, making the substantial 42.5mm size surprisingly wearable. That bright Aquamarine dial absolutely pops against the marbled, almost organic pattern of the carbon – it's pure electric cool, like finding a tropical reef hidden in a stealth fighter's cockpit. Underneath the high-tech exterior beats a COSC-certified heart, a reminder that this isn't just a looker; it's a serious, precision instrument built on decades of DOXA dive watch heritage. The domed sapphire crystal adds a touch of vintage charm, while the super-bright lume and the sturdy, PVD-coated clasp with its dive extension confirm its readiness for actual underwater work. It’s a watch that bridges the gap between cutting-edge material science and legendary tool-watch design, perfect for someone who appreciates performance as much as standout style.

DescriptionManufacturing specifications dictate the utilization of a forged carbon material for the primary watch case construction, yielding dimensions of 42.50 mm in diameter, 45.00 mm lug-to-lug, and a vertical profile height of 13.40 mm. Structural integrity under hydrostatic pressure is ensured via a pressure-resistant titanium chamber housing the movement, complemented by a screw-down case back fabricated from the same titanium material. A screw-down crown mechanism further enhances water resistance, achieving a rating of 30 ATM, which corresponds to a depth capability of 300 meters or approximately 984 feet. Time-setting and winding operations are facilitated through this crown interface. Protecting the dial aperture is a domed sapphire crystal, selected for its high scratch resistance properties and treated with an anti-reflective coating to optimize legibility under various lighting conditions. The unidirectional rotating bezel, a critical component for dive time measurement, is also constructed from forged carbon and features indexed markings calibrated in meters. Luminescence for low-light visibility is provided by Super-LumiNova coatings applied to all dive-critical indicators on the dial and bezel.

Powering the timekeeping functions is a Swiss mechanical automatic movement, certified as a Chronometer by the Contrôle Officiel Suisse des Chronomètres (COSC), attesting to its adherence to stringent precision and reliability standards. This self-winding caliber operates at a frequency of 28,800 vibrations per hour (4.0 Hz) and provides a power reserve autonomously maintained for approximately 38 hours when fully wound. The movement architecture incorporates decoration applied by DOXA. Indicated functions include central hours, minutes, and seconds, alongside a date display positioned within an aperture at the 3 o'clock location on the dial. Attachment to the wrist is achieved using an FKM rubber strap, specifically colored to match the Aquamarine dial, featuring a lug width interface of 20.00 mm. Securing the strap is a folding clasp assembly treated with a black PVD coating for durability and aesthetics; this clasp incorporates the Doxa fish symbol and includes a ratcheting wetsuit extension mechanism allowing for adjustable fit over diving apparel.

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