Doxa SUB 300T Searambler

Doxa SUB 300T Searambler 840.10.021.10
Images Courtesy of Doxa
Doxa SUB 300T Searambler 840.10.021.10

Searambler

Reference Number :

840.10.021.10

Series : SUB 300T
Retail: $1,990
(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 TakeThis Searambler isn't just a reissue; it's a time machine strapped to your wrist, beaming you back to the golden age of dive watches but with all the modern reliability you'd demand. That silvery dial – the Searambler's signature – catches the light in a way that's both classic and incredibly legible, especially against the bold, chunky hands filled with lume. You feel the heritage, the connection to Cousteau and the pioneers, but it's built like a contemporary submersible. The 1200-meter water resistance and helium escape valve are pure overkill for most of us, sure, but knowing that capability is there? That's part of the DOXA charm. It's engineered toughness. The patented bezel with the no-deco scale feels purposeful under your fingers, each click precise. And the "Beads of Rice" bracelet? It just flows around the wrist, way more comfortable than its tool-watch nature might suggest. It’s a watch that looks equally ready for a deep dive or just cruising through the day, carrying a serious piece of dive watch history with a bright, optimistic face.
DescriptionManufacturing specifications define the SUB 300T Searambler, reference 840.10.021.10, as a timepiece engineered for underwater performance, drawing heritage from the 1968 SUB 300T Conquistador. Its enclosure is constructed from high-grade 316L stainless steel, selected for its corrosion resistance and durability. The case dimensions measure 42.50 mm in diameter across the short axis and 44.50 mm across the long axis, with a vertical profile height of 13.65 mm. Water ingress protection is achieved through a screw-down crown mechanism and a solid stainless steel screw-down case back, contributing to a substantial water resistance rating of 120 atmospheres, equivalent to 1,200 meters or 3,937 feet. The design incorporates a helium release valve, a feature essential for saturation diving, allowing trapped helium molecules to escape during decompression, preserving the integrity of the watch crystal. Protecting the dial is a scratch-resistant sapphire crystal, enhanced with an anti-reflective coating to maximize legibility by minimizing glare under various lighting conditions, including direct sunlight and underwater environments.

Powering the timekeeping functions is a Swiss mechanical movement featuring automatic self-winding capabilities. This caliber operates at a frequency of 28,800 vibrations per hour (4.0 Hz), ensuring precise timekeeping with hours, minutes, and seconds indication, alongside a date complication displayed through an aperture on the dial. The movement provides a power reserve of approximately 38 hours when fully wound and includes decoration applied by DOXA. Central to its diving utility is the patented unidirectional rotating bezel, calibrated in feet, which incorporates an integrated no-decompression dive time calculator. Legibility in low-light conditions, crucial for diving, is ensured through the application of Super-LumiNova luminescent material on all dive-relevant indicators, including hands and dial markers. The timepiece attaches to the wrist via a 316L stainless steel "Beads of Rice" style bracelet, noted for its comfort and articulation, or an optional FKM rubber strap. Both options utilize a folding clasp mechanism incorporating a ratcheting wetsuit extension for easy adjustment over dive suit sleeves. The interface point between the case and bracelet/strap corresponds to a standard lug width of 20.00 mm.
GenderMen
SignaturesDOXA
Country of OriginSwitzerland
Case Size42.5 mm
MovementAutomatic
FunctionsHours, Minutes, Seconds, Date
Power Reserve38 Hours
Case MaterialsStainless Steel
Bezel MaterialsStainless Steel
Lug MaterialsStainless Steel
Case BackSolid
CrownScrew Down
Dial ColorSilver
Band TypeStainless Steel
Clasp TypeDeployant
Band ColorStainless Steel
Year Made2020s
Limited EditionNo
Hour MarkersIndex
Band Width20 mm
Case Thickness13.65 mm
Case ShapeCushion
StyleDiver
Water Resistance 1200 Meters
Crystal Sapphire
Lug to Lug 44.5 mm
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