Doxa SUB 300 SUB 300 Searambler

Reference 821.10.021.20

About this watch

The Doxa SUB 300 Searambler is a luxurious dive watch that embodies the spirit of adventure and exploration. Its sleek design, robust performance, and legacy make it a standout choice for both divers and watch collectors alike. The silver sunburst finish gleams under light, exuding a sense of sophistication and adventure. The tonneau shape gives it a unique profile that stands out on the wrist, making it a conversation starter wherever you go. At the core lies the renowned ETA caliber 2824-2 movement, celebrated for its reliability and precision. With a water resistance of 300 meters, it's designed for serious divers. The rotating bezel marked from 0-60 allows you to track elapsed time underwater, ensuring safety while exploring the depths. The Doxa SUB 300 Searambler strikes a balance between substantial presence and wearing comfort, making it an ideal companion for both day-to-day activities and extended diving sessions.
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Key Features

  • Stainless Steel Case
  • Sapphire Crystal
  • Rotating Bezel with 0-60 Markings
  • ETA Caliber 2824-2 Movement
  • Water Resistance up to 300 meters

Specifications

Brand
Doxa
Family
SUB 300
Model
SUB 300 Searambler
Reference
821.10.021.20
Movement
2824-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 42.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
300

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