Doxa Dive Watch Collection
Collection

Doxa Dive Watch Collection

By RDSChicago · Jan 2, 2026 · 27 replies
RDSChicago
WPS member · Horological Meandering forum
27 replies1059 views2 photos
f 𝕏 in 💬 🔗

RDSChicago's acquisition of a Doxa SUB 300 highlights the enduring appeal of a brand celebrated for its dive watch heritage and distinctive design. His post not only showcases a new addition to his collection but also opens a practical discussion on the nuances of Doxa's bracelet adjustment mechanisms, a common point of interest for new owners and seasoned collectors alike. This article delves into the community's shared experiences and technical advice, making RDSChicago's journey a valuable resource for anyone considering or owning a Doxa.

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I’ve admired the photos many of you have posted of your Doxa watches and have been intrigued by the brand over the last several months, so I pulled the trigger on a SUB 300, particularly for two reasons: a) it’s a bit thinner than some of its brethren; and b) the COSC certification. 

Quick question. Can someone point to a link explaining how to adjust the micro adjustment mechanism on the clasp? I removed a few links and the watch is just a bit tight. From watching a video it appears I may not have the latest clasp? Thanks! 










About the Doxa Ref. Sub300

The Doxa SUB 300 is a notable offering within the brand's collection, distinguished by its relatively slender profile compared to some of its counterparts. This reference is recognized for its adherence to chronometer standards, indicated by its COSC certification, which assures a high degree of timekeeping precision. It represents a contemporary interpretation that balances historical design cues with modern horological requirements.

This particular SUB 300 model features a stainless steel case, typically measuring around 42.5mm in diameter, though its design contributes to a perception of reduced thickness on the wrist. It is powered by an automatic movement, often a variant of the ETA 2824-2, which provides a power reserve of approximately 38 hours. The watch is fitted with a sapphire crystal, enhancing its durability and scratch resistance, and offers a water resistance rating suitable for its intended use.

For collectors, the SUB 300 appeals to those seeking a robust and precise tool watch with a distinct aesthetic. Its COSC certification adds a layer of technical appeal, positioning it as a reliable performer. The design, while contemporary, maintains a clear lineage to Doxa's heritage, making it a relevant piece for enthusiasts interested in the brand's evolution and its commitment to certified accuracy.

Specifications

Caliber
ETA 2824-2
Case
Stainless steel
Diameter
42.5mm
Dial
Orange
Water Resist.
300m
Crystal
Sapphire

Key Points from the Discussion

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The Discussion
BR
bruckner4
Jan 2, 2026

You got a beautiful Sharkie there.

RD
RDSChicago
Jan 3, 2026

Not quite as outwardly striking as your Pro, but both colors are certainly lookers!!

JO
JohnFM
Jan 3, 2026

with its striking dial and domed crystal.

AR
Arronax
Jan 3, 2026

The sub300 is a sweet watch and a joy to wear, I'm sure you will love it. The clasp is the stamped one, to adjust the bracelet you just need to move the bar to another hole (just push it with tooth pick and move it a hole closer to the outside where there are 4 holes for this purpose). Here's my searambler:

KM
KMII
Jan 3, 2026

It’s one of those understated classics 😊🦾 Here’s my Searambler saying hi 👋🏻

RD
RDSChicago
Jan 3, 2026

Love your SeaRambler!

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