Doxa SUB 300 SUB 300T Aquamarine / Bracelet

Reference 840.10.241.10

About this watch

The Doxa SUB 300T Aquamarine is a remarkable watch that beautifully marries function and fashion. With its striking blue dial, robust features, and reliable ETA caliber 2824-2 movement, it's perfect for both divers and watch enthusiasts alike. The tonneau case gives it a unique silhouette, while the rotating bezel allows you to track elapsed time underwater. With a water resistance of up to 1200 meters, this watch is designed for serious diving. Its combination of durability, functionality, and aesthetic appeal makes it a fantastic choice for anyone who values a great timepiece.
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Key Features

  • ETA caliber 2824-2 automatic movement
  • Tonneau case with rotating bezel
  • Sapphire crystal glass for scratch resistance
  • Water resistance up to 1200 meters
  • Matte blue dial with stick and dot indexes
  • Stainless steel construction for durability
  • 20mm lug width for comfortable fit

Specifications

Brand
Doxa
Family
SUB 300
Model
SUB 300T Aquamarine / Bracelet
Reference
840.10.241.10
Movement
2824-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 42.5mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
1200

Current Listings

[WTS] Doxa Sub 300T Caribbean

Doxa Sub 300T Caribbean

Doxa - Sub 300T · $1,250
A Doxa Sub 300T with a Caribbean dial, featuring a 2021 warranty dated card and full kit.

  • Condition: Great condition with minor scuffs
  • Warranty Valid Until: 2021
  • Strap Size: perfectly sized for a 6.75 inch wrist
  • Adjuster On Clasp: yes
Posted at
Nov 4, 2025, 12:55 PM
Active
[WTS] Doxa SUB 300 Great White Topper Edition, $2600

Doxa SUB 300 Great White Topper Edition, $2600

Up for sale is my Doxa Great White Topper Edition, number 70 of 100. It has a lume dial and no date feature.

  • Condition: Excellent
  • Limited edition quantity: 100
  • Case size: 40mm diameter
  • Water resistance: 200m depth rating
Posted at
Oct 26, 2025, 11:27 PM
Active
[WTS] Doxa Sub 300 Professional

Doxa Sub 300 Professional

This Doxa Sub 300 Professional is a modern dive watch with vintage vibes, featuring a polished bezel and a Reddit favorite. It comes on a bracelet as well as an additional orange OEM strap and adjustable bracelet.

  • Condition: Excellent (94%)
  • Case size: 42mm diameter
  • Bracelet type: Stainless steel bracelet with clasp extension
  • Water resistance: 300m depth rating
Posted at
Oct 24, 2025, 8:51 AM
Active
[WTS] Doxa Sub 300 Carbon w full kit + extra strap

Doxa Sub 300 Carbon w full kit + extra strap

Doxa - Sub 300 Carbon · $3,500
This Doxa Sub 300 Carbon features a carbon case, 42.5mm case size, and a unique 'saturation' bezel for diving. It comes with two rubber straps and has a 2-year warranty.

  • Condition: Excellent, works great
  • Depth rating: 300m
  • Case size: 42.5mm
  • Lug to lug length: short fits small wrists
Posted at
Oct 23, 2025, 1:23 PM
Active