
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.


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.
You got a beautiful Sharkie there.
Not quite as outwardly striking as your Pro, but both colors are certainly lookers!!
with its striking dial and domed crystal.
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:
It’s one of those understated classics 😊🦾 Here’s my Searambler saying hi 👋🏻
Love your SeaRambler!
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