Doxa SUB 300 SUB 300 Professional
Reference 821.10.351.21
About this watch
The Doxa SUB 300 Professional is a luxurious dive watch that exudes sophistication and adventure. Its striking orange dial, combined with the rugged tonneau shape, creates a unique visual statement. The watch's robust stainless steel construction, paired with a durable sapphire crystal, ensures it can withstand even the most intense underwater explorations. With a reliable ETA caliber 2824-2 movement and a water resistance of 300 meters, this timepiece is perfect for divers who demand precision and reliability. Whether you're a seasoned diver or simply someone who appreciates craftsmanship, the Doxa SUB 300 Professional is an investment that will pay dividends for years to come.
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Key Features
- ETA caliber 2824-2 automatic movement
- Robust stainless steel case with tonneau shape
- Durable sapphire crystal for scratch resistance
- Water resistance of 300 meters for extreme diving
- Rotating bezel with 0-60 scale for accurate tracking
- Striking orange dial with stick and dot indexes for enhanced visibility
- Comfortable fit with versatile strap options
Specifications
- Brand
- Doxa
- Family
- SUB 300
- Model
- SUB 300 Professional
- Reference
- 821.10.351.21
- Movement
- 2824-2
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Case
- Stainless Steel 42.5mm
- Dial Color
- Orange
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] DOXA Sub 300 50th Anniversary Sharkhunter – Full Kit – Excellent Condition](https://external-preview.redd.it/igPCujtFtsXtyMCIKoP5xm3YSpzQ7vdHxwL2OO2W8ro.jpeg?auto=webp&s=c284724d209609c898df40bb511852053a861312)
DOXA Sub 300 50th Anniversary Sharkhunter – Full Kit – Excellent Condition
A faithful reissue of the iconic 1967 DOXA Sub 300, limited to just 300 pieces worldwide, with vintage-correct proportions and a COSC-certified movement.
- Condition: Excellent condition, worn sparingly
- Case diameter: 42.5mm
- Case thickness: 13.4mm
- Lug width: 20mm
![[WTS] DOXA SUB 300 'Aquamarine'](https://preview.redd.it/kc0o3isndw6f1.jpeg?auto=webp&s=9e4fa1aca94ea13a95d0c5aa6f0cd6808a0f2989)
DOXA SUB 300 'Aquamarine'
This Doxa SUB 300 'Aquamarine' is a 2024 model featuring a 42.5mm case and 44.5mm lug to lug length, paired with the original DOXA bracelet.
- Condition: Like new
- Case size: 42.5mm diameter
- Lug to lug: 44.5mm
![[WTS] Doxa Sub 300T Aquamarine](https://external-preview.redd.it/IO9URXDQBnBpaI6ddho4TbPyeV-Lu38Zap-EZUfuk1c.jpeg?auto=webp&s=f2210ddb61f807d189a6c29eee7a9529a5c54d4e)
Doxa Sub 300T Aquamarine
This Doxa Sub 300T Aquamarine is a pre-owned timepiece in great condition. It comes boxed with additional accessories such as a travel case, booklet, hangtag, lanyard, and warranty card.
- Condition: Overall Very Good Shape, with Couple minor marks on the bezel and some minor wear on the bracelet
![[WTS] DOXA Sub 300 Professional Aqualung Blacklung - $5200](https://external-preview.redd.it/F4_cF-Wza_JwLLicvq21xk3xB-6tqjAOf3OTvL782TQ.jpeg?auto=webp&s=ee39784753f6e49c03dd7a2d930b008192fa7428)
DOXA Sub 300 Professional Aqualung Blacklung - $5200
A DOXA Sub 300 Professional Aqualung Blacklung in great condition, featuring a minor wear and coming with various accessories.
- Condition: Great condition, minor wear
- Price Included Components: $5200 (includes USPS Insured Registered Mail, tube, extra links, warranty card, official Doxa rubber strap)
- Payment Methods Accepted: PayPal, wire, Venmo
- Shipping Options: Free shipping with F+F or buyer covers G+S fee

Pre-Owned Doxa SUB 300T Clive Cussler 840.80.031.15
Pre-owned Doxa SUB 300T Clive Cussler watch in good condition with some minor marks.
- Condition: 96% condition, faint marks on sides and back of case, bracelet links, minor wear on OEM strap
- Movement: Automatic
- Case size: 43mm x 45mm diameter
- Material: Stainless Steel
![[WTS] DOXA SUB 300 'Aquamarine'](https://preview.redd.it/yoo9dphs8i5f1.jpeg?auto=webp&s=3075b30f3b3080a84601ae3f62bd2d775f23aac5)
DOXA SUB 300 'Aquamarine'
A Doxa SUB 300 'Aquamarine' watch, a 42.5mm timepiece with a lug to lug length of 44.5mm, featuring a DOXA bracelet and full set including box, papers, and hang tags.
- Condition: Like new
- Case Size: 42.5mm
- Lug To Lug: 44.5mm
- Strap: Doxa bracelet
![[WTS] DOXA Sub 300 Professional Aqualung Blacklung - $5200](https://preview.redd.it/532v863a365f1.jpg?width=640&crop=smart&auto=webp&s=d02c1cf291d91659c841d5e9c92b2ceb15c4e18d)
DOXA Sub 300 Professional Aqualung Blacklung - $5200
The DOXA Sub 300 Professional Aqualung Blacklung is a fun and capable watch, very difficult to find. It comes with various accessories including a tube, bracelet, extra links, warranty card, and an official rubber strap.
- Condition: Great condition, minor wear
- Depth rating: 200m water resistance
- Included accessories: tube, watch, bracelet, extra links, warranty card, official Doxa rubber strap

Pre-Owned Doxa SUB 300T Clive Cussler 840.80.031.15
Pre-owned Doxa SUB 300T Clive Cussler model with automatic movement, stainless steel case, vintage dial, and water resistance up to 300 meters.
- Condition: 96% condition due to faint marks on the sides and back of the case, bracelet in 96% condition with faint marks on a few links, OEM strap in 97% condition with minor wear
- Movement: Automatic
- Case size: 43mm x 45mm
- Material: Stainless Steel
![[WTS] Doxa Sub 300T | Full Box & Papers](https://preview.redd.it/feyv3e3l4d4f1.jpg?width=640&crop=smart&auto=webp&s=cc0d97388e6c833afeaef8ae097591f780735434)
Doxa Sub 300T | Full Box & Papers
This Doxa Sub 300T is a large watch that the seller has found too big for their wrist, making it available for sale.
- Condition: Good condition
- Wrist size compatibility: too big