Doxa

Sea Emerald

Reference Number :

822.70.131.20

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 clunky steel divers; the SUB 300 Carbon Sea Emerald is a featherweight champion hiding heavyweight capabilities. That forged carbon case isn't just for show – it makes this watch incredibly light on the wrist, almost disappearing until you need it. Then, boom! That stunning Sea Emerald sunray dial grabs your attention, shimmering like sunlight filtering through kelp forests. It’s a serious dive watch, no doubt, with its 300-meter water resistance, robust titanium inner chamber, and the ever-reliable COSC-certified automatic movement ticking away inside. But it cleans up nicely, too. The carbon gives it a stealthy, modern edge that feels just as right exploring the city as it does exploring a reef. The domed sapphire crystal adds a touch of vintage cool, while the bright lume ensures you're never lost in the dark, above or below the waves. It’s the perfect blend of high-tech materials, proven dive watch engineering, and a splash of unexpected color.

DescriptionThis instrument utilizes a forged carbon case construction, selected for its inherent lightweight properties and structural integrity. The case dimensions are specified as 42.50 mm in diameter, extending to 45.00 mm across its asymmetrical profile, with a vertical height measurement of 13.40 mm. Engineering for aquatic environments includes a screw-down crown mechanism and a pressure-resistant internal chamber fabricated from titanium, which also constitutes the material for the screw-down case back. These design elements contribute to a water resistance rating certified to 30 ATM, corresponding to a depth of 300 meters or approximately 984 feet. Protecting the dial assembly is a domed sapphire crystal, chosen for its high scratch resistance. An anti-reflective treatment is applied to this crystal surface to maximize legibility by minimizing glare under various lighting conditions. The unidirectional rotating bezel, also constructed from carbon, features dive time markings calibrated in meters, adhering to its functional purpose as a diving instrument.

Powering the timekeeping functions is a Swiss-manufactured mechanical movement operating on an automatic self-winding system. This caliber has achieved COSC (Controle Officiel Suisse des Chronometres) certification, verifying its performance against stringent standards for precision and reliability under specified test conditions. The movement 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. Decoration applied by Doxa enhances the visual aspect of the internal mechanism, visible should the case back be removed. Time indication is provided through central hour, minute, and second hands. A date aperture is integrated into the dial architecture at the 3 o'clock position. The Sea Emerald dial employs a sunray finish, creating dynamic visual effects as light interacts with the surface. For effective operation in low-light environments, all dive-pertinent markings on the dial and bezel incorporate a Super-LumiNova luminescent coating, ensuring sustained visibility after exposure to a light source. Strap integration is facilitated by a lug width of 20.00 mm.

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