The Oris Aquis 400 Green commands attention with its deep, sunburst green dial, a color that evokes the ocean depths and a modern commitment to environmental consciousness. More than just an aesthetic choice, this timepiece is built around the formidable Calibre 400, a five-day power reserve movement that represents a significant leap in reliability and anti-magnetism for the brand. It stands as a statement piece for the contemporary diver or watch enthusiast who values technical prowess alongside distinctive design.
At the heart of the watch lies the in-house Calibre 400, a movement developed to address common wearer frustrations. Its most notable feature is the impressive 120-hour power reserve, allowing the watch to be set aside for a weekend and still be running accurately on Monday morning. Furthermore, the movement is engineered to be highly resistant to magnetic fields, a pervasive threat to mechanical accuracy in the modern world, thanks to the use of more than 30 anti-magnetic components.
The 43.5mm stainless steel case is a masterclass in robust, tool-watch construction, with a water resistance of 300 meters. The unidirectional rotating bezel features a ceramic insert in a matching dark green hue, prized for its scratch resistance and permanent color. The integration of the bracelet with the case lugs is seamless, creating a fluid, monolithic silhouette that is both comfortable on the wrist and instantly recognizable as part of the Aquis family lineage.
This commitment to purpose-driven watchmaking is a core philosophy for the independent Swiss watchmaker Oris, evident across its diverse collections. The green dial, with its gradient sunburst effect that darkens towards the edges, is more than a trend; it symbolizes the brand’s active partnerships with organizations dedicated to ocean conservation. Each watch becomes a subtle nod to a larger mission, blending personal style with a broader environmental ethos.
Legibility is paramount for any dive instrument, and the Aquis 400 Green delivers with large, applied indices and broad, faceted hands filled with Super-LumiNova. The date window at 6 o’clock maintains dial symmetry, while the sapphire crystal with anti-reflective coating on both sides ensures clarity in all lighting conditions, from bright sunlight to the murky ocean depths. The caseback is solid, underscoring the tool-watch nature, though it bears engravings of Oris’s symbolic diving helmet.
Wearing the Aquis 400 Green reveals its thoughtful ergonomics. The bracelet tapers elegantly and is secured by a sturdy folding clasp with a fine-adjustment system, allowing for a perfect fit over a wetsuit or during daily fluctuations in wrist size. The weight and presence on the wrist feel substantial and confident, communicating a sense of durability without being cumbersome, making it suitable for both underwater adventures and urban exploration.
In a market segment filled with homages, the Aquis design stands out for its originality. Its case shape and integrated bracelet offer a distinct alternative to more traditional dive watch silhouettes. The use of the Calibre 400 movement shifts the value proposition from external design alone to include genuine mechanical innovation, positioning Oris as a brand capable of competing with larger manufactures on technology while retaining its accessible and principled identity.
The Oris Aquis 400 Green ultimately represents a holistic approach to modern watchmaking. It successfully marries a bold and meaningful aesthetic with a genuinely innovative and robust mechanical engine. It appeals to those who seek a watch with a story鈥攐ne of technical achievement, independent spirit, and a tangible connection to preserving the natural world that inspires its very design. It is a tool for exploration, a symbol of awareness, and a compelling daily companion.
