Oris Watches Great Barrier Reef Limited Edition IV Miami

Introduction: A Dive Watch with a Story Beneath the Surface

Some watches are defined by a complication, some by a recognizable silhouette, and others by the story that gives their design a reason to exist. The Oris Great Barrier Reef Limited Edition IV belongs to the third category without sacrificing the practical qualities expected from a modern mechanical dive watch. It takes the established Aquis Date platform and gives it a distinctive identity through a blue-to-green gradient dial, special-edition details and a connection to reef conservation.

Its appeal is not limited to the ocean theme. The 43.5 mm stainless-steel case, tungsten minute-scale top ring, domed sapphire crystal and 30-bar water resistance create a robust specification for daily wear and water-oriented activities. Inside, the Oris Calibre 400 family movement delivers a five-day, or 120-hour, power reserve.

The edition is limited to 2,000 watches. That number gives the reference a defined place within the Aquis family, while the special case-back engravings distinguish it from a standard production model.

At Lexor Miami, the watch is listed under reference 01 400 7790 4185-Set at a displayed price of $4,750. Product availability and pricing can change, so use the live product page for the current purchase details.

The Story Behind the Oris Great Barrier Reef Limited Edition IV

A watch connected to one of the world's great marine ecosystems

The Great Barrier Reef is one of the world's best-known marine ecosystems. Its scale and biodiversity make it a powerful symbol of the importance of healthy oceans. Oris has used its watchmaking platform to support conversations about water, endangered marine life and conservation for many years. The Great Barrier Reef Limited Edition series represents a continuing expression of that commitment.

The fourth edition was created in connection with the pioneering work of the Resilient Reefs Foundation, an Australian non-profit focused on helping reef communities respond to the effects of coral bleaching and other pressures. The foundation's work emphasizes resilience: supporting the people, knowledge and local action needed to help reef systems adapt.

The dial translates the reef reference into color rather than literal illustration. Its blue-to-green gradient evokes changing water tones, giving the watch visual depth while preserving the legibility and recognizable layout of the Aquis. The special engravings on the screwed stainless-steel case back reinforce the limited-edition identity.

Why the fourth edition matters

The Great Barrier Reef name is not simply a decorative label. It places this reference within a sequence of Oris special editions built around a long-running conservation theme. The fourth release extends that narrative and gives collectors a clear reason to distinguish it from a standard Aquis Date. Its 2,000-piece production limit adds scarcity by design, although limited production should never be interpreted as a guarantee of future appreciation or investment performance.

Oris: Independent Swiss Watchmaking Since 1904

From Hölstein to an international community of mechanical-watch enthusiasts

Oris was founded in 1904 in Hölstein, Switzerland. Over more than a century, the company has developed a recognizable identity built around mechanical watches, practical functions and distinctive design. The brand's history includes watches for aviation, diving, motorsport and everyday use.

The company's portfolio includes several recognizable families. Big Crown watches draw on aviation heritage and include the signature pointer-date display. Aquis models bring a contemporary interpretation to the dive-watch category, with robust cases, rotating bezels and water-resistance ratings that vary by reference. ProPilot watches translate aviation cues into legible, purposeful designs.

What makes Oris distinctive?

Oris occupies an appealing position for buyers who value Swiss watchmaking but want a brand identity that feels individual rather than ubiquitous. The company's mechanical focus, recognizable red rotor on many automatic movements, and collection-specific design language create a strong enthusiast following.

The Great Barrier Reef Limited Edition IV combines the Calibre 400 movement story with the Aquis design language and an environmental theme.

Explore more from the brand in the Oris Watches collection at Lexor Miami, or browse the wider watch collection.

Design: A Gradient Dial Inspired by the Reef

Blue and green tones with a changing visual character

The dial is the first detail most people notice. Its gradient moves between blue and green, recalling the changing colors of tropical water as light, depth and the reef environment shift. The effect gives the watch more personality than a uniform blue dial while remaining versatile enough to pair with neutral clothing, denim, resort wear or a business-casual wardrobe.

Applied hour markers and central hands provide the familiar Aquis display. The layout is designed to keep time reading straightforward, while the date function adds everyday utility.

Case proportions and wrist presence

The 43.5 mm case gives the watch a confident presence. Buyers should consider more than the diameter when judging fit: wrist shape, wrist circumference, lug geometry, bracelet articulation and personal preference all affect how a watch wears.

The stainless-steel bracelet gives the watch a cohesive, robust appearance. Its metal finish complements the case and makes the watch easy to style beyond a strictly aquatic setting. The 23 mm interhorn width is a useful specification for anyone researching compatible strap options.

Materials and Construction

Multi-piece stainless-steel case

The case is made from multi-piece stainless steel. Stainless steel is widely used in quality sports watches because it offers a practical balance of strength, corrosion resistance, finishing potential and everyday wearability. In this reference, the case architecture is paired with a screwed stainless-steel case back carrying special engravings.

Tungsten minute-scale top ring

The top ring uses tungsten for the minute scale. Tungsten is notably hard and dense, which makes it an interesting material for a component exposed to regular handling. Its use adds a technical material detail to the bezel assembly.

Domed sapphire crystal

The watch uses sapphire crystal, domed on both sides and treated with anti-reflective coating on the inside. Sapphire is valued in watchmaking for its scratch resistance relative to many alternative transparent materials.

Stainless-steel bracelet

The supplied bracelet is stainless steel. It creates a unified look with the case and suits the watch's robust character. Bracelet comfort depends on correct sizing and adjustment.

Oris Calibre 400: Five Days of Mechanical Autonomy

What a 120-hour power reserve means

The Calibre 400 is the technical centerpiece of this watch. It is an automatic mechanical movement with a stated power reserve of 120 hours, equivalent to five days. In practical terms, a fully wound watch can continue running for up to five days when it is not being worn, subject to its operating conditions and state of wind.

This is especially useful for collectors who rotate between several watches: you can set this Aquis aside for a weekend and, within the stated reserve, it should not need to be restarted simply because it was not worn for a day or two.

Anti-magnetic performance

Modern life exposes watches to magnetic fields from everyday objects and electronic equipment. Mechanical watches can be affected by magnetism, which may alter timekeeping. Oris describes the Calibre 400 as offering elevated levels of anti-magnetism. This does not mean the watch is immune to every magnetic field.

Service interval and warranty extension

Oris recommends a 10-year service interval for the Calibre 400 and offers eligible owners the opportunity to extend the warranty through registration with MyOris. The manufacturer's product information lists a two-year standard warranty and states that joining MyOris can extend coverage free of charge to as much as 10 years, depending on the movement and applicable terms.

Water Resistance and Dive-Watch Functionality

The Great Barrier Reef Limited Edition IV is rated to 30 bar, equivalent to 300 meters under the manufacturer's stated specification. This places it firmly in the professional-style dive-watch category on paper.

The rating is a laboratory specification, not a guarantee that every watch is suitable for every underwater activity regardless of condition, age or handling. Before swimming or diving, ensure the crown is secured as instructed and the watch has been maintained with its seals in good condition.

The unidirectional rotating bezel is designed for elapsed-time measurement, a core dive-watch function. The clear central hands and applied markers support legibility.