Description
The Oris Aquis Great Barrier Reef Limited Edition IV marks the fourth chapter in Oris's long-running relationship with Australia's Great Barrier Reef, one of the world's most important marine ecosystems.
Limited to 2,000 pieces worldwide, this special edition combines the established Aquis dive-watch architecture with a gradient blue dial inspired by the colours and depths of the reef.
Beyond its appearance, the watch supports Oris's continuing collaboration with the Resilient Reefs Foundation, an Australian non-profit working to strengthen the resilience of coral reefs against environmental threats.
At its heart is Oris Calibre 400, a high-performance automatic movement offering five days of power reserve, elevated anti-magnetic protection and extended recommended service intervals.
Inspiration & Design
The Great Barrier Reef is the world's largest coral reef system, supporting an extraordinary diversity of marine life while facing growing pressure from rising ocean temperatures and coral bleaching.
Oris has maintained a relationship with the reef for 15 years, using its Great Barrier Reef Limited Edition watches to draw attention to conservation efforts and the importance of protecting marine ecosystems.
For this fourth edition, Oris continues its association with the Resilient Reefs Foundation, whose work focuses on helping coral reefs adapt to changing environmental conditions.
The watch expresses this connection through a gradient blue dial, transitioning between shades that evoke the changing colours and depths of the ocean.
Rather than introducing an entirely new case design, Oris builds on the established Aquis platform, allowing the dial and conservation story to distinguish this edition.
Dial & Case
The Great Barrier Reef Limited Edition IV features a gradient blue dial, with contrasting hands and hour markers arranged in the familiar Aquis configuration.
A date window provides everyday practicality, while the dial's graduated colour treatment creates visual depth without compromising the watch's clean, functional layout.
The 43.5mm multi-piece stainless-steel case is fitted with a tungsten minutes-scale top ring, bringing a contrasting metallic finish to the bezel.
A sapphire crystal, domed on both sides and treated with an internal anti-reflective coating, protects the dial.
The screwed stainless-steel caseback carries special engravings identifying the edition.
With 300 metres of water resistance, the watch retains the robust construction expected of the Aquis collection.
Movement
The Great Barrier Reef Limited Edition IV is powered by Oris Calibre 400, an automatic mechanical movement developed as part of the brand's modern generation of high-performance calibres.
Operating at 28,800 vibrations per hour (4Hz), the movement provides an impressive 120-hour power reserve, allowing the watch to remain running for up to five days when fully wound.
Calibre 400 is also engineered for enhanced anti-magnetic performance and long-term reliability, with Oris recommending service intervals of approximately ten years.
Functions include central hours, minutes and seconds, an instantaneous date display, date correction and stop-seconds for precise time setting.
The movement is covered by a 10-year warranty when registered with MyOris, extending the standard two-year warranty.
Bracelet / Strap
The watch is fitted with a stainless-steel bracelet, complementing the Aquis case and reinforcing its integrated sports-watch aesthetic.
Its solid construction provides a balanced, cohesive appearance, while the 23mm interhorn width accommodates compatible Oris replacement straps.
For collectors who prefer a more casual configuration, the Aquis platform also supports compatible rubber strap options.
Final Thoughts
The Great Barrier Reef Limited Edition IV is an appealing expression of what makes the modern Oris Aquis compelling.
Its gradient blue dial provides an immediate visual connection to the ocean, while the limited production of 2,000 pieces gives the watch a distinct place within the collection.
More importantly, the Calibre 400 movement brings considerable technical value through its five-day power reserve, enhanced anti-magnetism and extended service and warranty provisions.
Combined with 300m water resistance and Oris's continuing commitment to reef conservation, this is a limited-edition dive watch with both mechanical and environmental significance.
| Limited edition: |
Only 2,000 pieces available worldwide |
| Case size: |
43.5mm
|
| Case material: |
Stainless steel; tungsten minutes scale top ring |
| Case back: |
Stainless steel, screwed, special engravings
|
| Movement type: |
Automatic |
| Movement no.: |
Oris Calibre 400
|
| Power reserve: |
Approx 120hrs / 5 days |
Dial:
|
Gradient blue dial |
| Glass: |
Sapphire, domed on both sides, AR coating inside
|
| Water resistance: |
30ATM |
| Strap type: |
Bracelet
|
| Strap material: |
Stainless steel bracelet |
| Buckle: |
Stainless steel buckle
|
| Warranty: |
2 years, extendable to 10 years when you join MyOris
|
