Rolex Deepsea in Oystersteel, M136660-0003: The Ultimate Guide

by Barbara

The Rolex Deepsea in Oystersteel, with reference number M136660-0003, stands as a testament to Rolex’s commitment to pushing the boundaries of dive watch technology. Born from the legacy of the Deepsea collection, this timepiece offers unparalleled durability and precision, making it a favorite among professional divers and watch enthusiasts alike. In this comprehensive guide, we explore the design, technical features, historical context, and unique characteristics that define the Rolex Deepsea M136660-0003.


I. Design and Build:

1. Robust Oystersteel Construction:


Crafted from Rolex’s proprietary Oystersteel, the Deepsea M136660-0003 ensures exceptional resistance to corrosion, providing longevity and a sleek aesthetic. Oystersteel is known for its durability and is often used in high-performance roles across various Rolex watch collections.


2. Helium Escape Valve:


One of the distinctive features of the Deepsea collection is the Helium Escape Valve. Designed for professional divers involved in saturation diving, the valve allows helium to escape during decompression, preventing damage to the watch. While most wearers may not utilize this feature, it underscores the watch’s capabilities in extreme conditions.

3. Ringlock System:

The Rolex Deepsea M136660-0003 incorporates the innovative Ringlock System, a hallmark of the Deepsea collection. This system enables the watch to withstand the immense pressure experienced during deep-sea dives. Comprising a nitrogen-alloyed steel central ring, a domed sapphire crystal, and a titanium case back, the Ringlock System ensures robustness at great depths.

II. Technical Features:

1. Caliber 3235 Movement:

Powering the Deepsea M136660-0003 is the Rolex Caliber 3235, a self-winding mechanical movement. This movement is known for its precision and reliability, meeting the stringent criteria set by Rolex’s Superlative Chronometer certification. The Parachrom hairspring enhances the movement’s resistance to shocks and magnetic fields.

2. Triplock Waterproofness System:

The watch features Rolex’s patented Triplock waterproofness system, providing an extra layer of protection against water intrusion. The system includes a triple-sealed winding crown, ensuring water resistance up to an impressive 3,900 meters (12,800 feet). This level of water resistance exceeds the requirements for professional divers, making the Deepsea a trusted tool in the underwater realm.

3. Chromalight Luminosity:

The Deepsea M136660-0003 incorporates Chromalight luminescent material on the hour markers and hands. This proprietary material emits a long-lasting blue glow, ensuring optimal legibility in dark and challenging underwater environments. The luminescent display is a crucial feature for divers relying on their watches in low-light conditions.

III. Iconic Deepsea Heritage:

1. Tribute to Deep-Sea Exploration:

The Deepsea collection pays homage to Rolex’s historic involvement in deep-sea exploration. The watch’s name is a direct reference to the Deep Sea Special, a Rolex experimental watch that successfully accompanied the bathyscaphe Trieste to the deepest point in the ocean—the Mariana Trench—in 1960.

2. James Cameron’s Historic Dive:

The Deepsea M136660-0003 gained widespread recognition when it accompanied filmmaker James Cameron on his historic solo dive to the Challenger Deep in 2012. Strapped to the submersible vessel, the watch endured the extreme pressure of 10,908 meters (35,787 feet) beneath the ocean’s surface, a testament to its robust construction.

3. Distinctive D-Blue Dial:

The Deepsea M136660-0003 features the iconic D-Blue dial, transitioning from deep blue to pitch black. This design element symbolizes the descent into the depths of the ocean. The unique dial design adds a touch of visual intrigue to the watch, making it instantly recognizable among Rolex enthusiasts.

IV. Wearing Experience:

1. Oyster Bracelet and Glidelock Extension:

The Deepsea M136660-0003 is equipped with the robust Oyster bracelet, featuring flat three-piece links for comfort and durability. The Glidelock extension system allows wearers to adjust the bracelet length without the need for tools, ensuring a secure and comfortable fit over a diving suit.

2. Large Case Diameter:

With a case diameter of 44mm, the Deepsea M136660-0003 commands a strong presence on the wrist. While the size may be substantial, it aligns with the watch’s tool-watch identity and ensures readability in various conditions, especially underwater.

3. Tool Watch Aesthetics:

The overall aesthetics of the Deepsea M136660-0003 embrace its tool-watch heritage. The bold and functional design, coupled with the striking D-Blue dial, reflects the watch’s purpose as a reliable instrument for professionals engaged in deep-sea exploration.

V. FAQs – Demystifying the Rolex Deepsea M136660-0003:

1. How deep can the Rolex Deepsea M136660-0003 go underwater?

The Rolex Deepsea M136660-0003 boasts an incredible water resistance of 3,900 meters (12,800 feet), making it suitable for the most demanding professional diving activities. This level of water resistance far exceeds the depths reached in typical recreational diving.

2. Does the Deepsea M136660-0003 come with a helium escape valve?

Yes, the Deepsea M136660-0003 is equipped with a helium escape valve. This feature is particularly beneficial for professional divers engaged in saturation diving, where helium can penetrate the watch during prolonged stays in pressurized environments.

3. Is the Deepsea M136660-0003 suitable for everyday wear, or is it specifically designed for diving?

While the Deepsea M136660-0003 is designed as a professional dive watch, its robust construction and classic Rolex aesthetics make it suitable for everyday wear. The watch’s durability, coupled with its distinctive design, appeals to both diving enthusiasts and those seeking a bold statement piece.

4. How often does the Deepsea M136660-0003 need to be serviced?

Rolex recommends servicing the Deepsea M136660-0003 approximately every ten years. However, the need for service may vary based on individual usage patterns and environmental conditions. Regular servicing ensures the watch continues to perform at its best.

5. Can the Deepsea M136660-0003 be considered a luxury watch, and is it suitable for formal occasions?

The Deepsea M136660-0003 is undoubtedly a luxury watch, given its precision craftsmanship, advanced technology, and association with Rolex’s heritage. While its tool-watch aesthetics may lean towards a more casual or sporty look, the watch’s robust elegance makes it suitable for various occasions, including formal events.

6. Does the Deepsea M136660-0003 come with a warranty?

Yes, the Rolex Deepsea M136660-0003 comes with Rolex’s standard warranty. The warranty terms and duration may vary by region, and owners are advised to register their watches with Rolex to activate the warranty.

In conclusion, the Rolex Deepsea in Oystersteel, M136660-0003, is more than a timekeeping instrument; it’s a triumph of engineering and a symbol of Rolex’s commitment to exploration and innovation. Whether diving into the depths of the ocean or making a statement on land, the Deepsea M136660-0003 continues to captivate watch enthusiasts with its exceptional design, robustness, and storied history.


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