Doxa SUB 300 SUB 300T Professional

Reference 840.10.351.21

Doxa SUB 300T Professional

About this watch

The Doxa SUB 300T Professional stands out as a beacon of luxury and functionality. With its rich history, striking orange dial, and exceptional water resistance of 1200 meters, this watch is perfect for divers and adventurers alike. The tonneau-shaped case, crafted from durable stainless steel, features a matte finish that adds an element of sophistication while minimizing glare. At the heart of the SUB 300T lies the reliable automatic ETA caliber 2824-2 movement, ensuring accurate timekeeping whether on land or underwater. The watch's sapphire crystal glass and closed case back provide additional protection against scratches and water damage. With its comfortable fit, stylish design, and versatility, the Doxa SUB 300T Professional is a worthy investment for anyone seeking a high-quality diving watch.
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Key Features

  • Automatic ETA caliber 2824-2 movement
  • Exceptional water resistance of 1200 meters (3900 feet)
  • Durable stainless steel construction with matte finish
  • Sapphire crystal glass for scratch-resistance and durability
  • Striking orange dial for high visibility in low-light conditions
  • Rotating dive bezel with 0-60 scale for tracking immersion time

Specifications

Brand
Doxa
Family
SUB 300
Model
SUB 300T Professional
Reference
840.10.351.21
Movement
2824-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 42.5mm
Dial Color
Orange
Crystal
Sapphire
Water Resistance
1200

Current Listings

[WTS] DOXA Sub 300 50th Anniversary Sharkhunter – Full Kit – Excellent Condition

DOXA Sub 300 50th Anniversary Sharkhunter – Full Kit – Excellent Condition

DOXA - Sub 300 50th Anniversary Sharkhunter · $3,375
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
Posted at
Jun 14, 2025, 1:24 PM
Active
View listing on r/WatchExchange
[WTS] DOXA SUB 300 'Aquamarine'

DOXA SUB 300 'Aquamarine'

Doxa - SUB 300 · $1,899
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
Posted at
Jun 14, 2025, 9:49 AM
Active
View listing on r/WatchExchange
[WTS] Doxa Sub 300T Aquamarine

Doxa Sub 300T Aquamarine

Doxa - Sub 300T Aquamarine · $1,450
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
Posted at
Jun 13, 2025, 10:42 PM
Active
View listing on r/WatchExchange
[WTS] DOXA Sub 300 Professional Aqualung Blacklung - $5200

DOXA Sub 300 Professional Aqualung Blacklung - $5200

DOXA - Sub 300 Professional Aqualung Blacklung · $5,200
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
Posted at
Jun 13, 2025, 1:37 PM
Active
View listing on r/WatchExchange
Pre-Owned Doxa SUB 300T Clive Cussler 840.80.031.15

Pre-Owned Doxa SUB 300T Clive Cussler 840.80.031.15

Doxa - SUB 300T Clive Cussler 840.80.031.15 · $2,399.002
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
Posted at
Jun 10, 2025, 1:42 AM
Active
View listing on WatchUseek
[WTS] DOXA SUB 300 'Aquamarine'

DOXA SUB 300 'Aquamarine'

Doxa - SUB 300 · $1,899
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
Posted at
Jun 7, 2025, 9:12 AM
Active
View listing on r/WatchExchange
[WTS] DOXA Sub 300 Professional Aqualung Blacklung - $5200

DOXA Sub 300 Professional Aqualung Blacklung - $5200

DOXA - Sub 300 Professional Aqualung Blacklung · $5,200
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
Posted at
Jun 5, 2025, 4:20 PM
Active
View listing on r/WatchExchange
Pre-Owned Doxa SUB 300T Clive Cussler 840.80.031.15

Pre-Owned Doxa SUB 300T Clive Cussler 840.80.031.15

Doxa - SUB 300T Clive Cussler 840.80.031.15 · $2,399.002
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
Posted at
Jun 4, 2025, 11:17 PM
Active
View listing on WatchUseek