review rolex movement 2231 | Rolex model 2235

Calibre 2231 is a self-winding mechanical movement entirely developed and manufactured by Rolex. Like all Rolex Perpetual movements, the 2231 is a testament to Rolex's dedication to precision, reliability, and enduring performance. While not as widely discussed as some of its more prominent siblings like the Calibre 3135 or the Daytona movements, the 2231 plays a crucial role in powering specific Rolex models, particularly those designed for smaller wrist sizes and featuring date complications. This in-depth review will explore the intricacies of the Rolex 2231 movement, comparing it to other significant Rolex calibers and highlighting its strengths and unique characteristics within the broader context of Rolex watchmaking.

A Deeper Dive into the Calibre 2231

The Rolex Calibre 2231 is a self-winding mechanical movement designed for smaller watches, typically ladies' models or those with a more petite profile. It shares many of the core principles of other Rolex movements, including a robust construction, a focus on accuracy, and features designed to enhance reliability and longevity. However, it's important to understand its specific design choices and how they differentiate it from larger, more complex movements.

Key Features and Characteristics:

* Self-Winding (Perpetual): The 2231, like all Rolex Perpetual movements, is automatically wound by the motion of the wearer's wrist. This eliminates the need for manual winding, ensuring consistent power and reducing wear and tear on the winding mechanism. The oscillating weight, or rotor, is designed to efficiently capture kinetic energy and transfer it to the mainspring.

* Chronometer Certified: Each 2231 movement undergoes rigorous testing by the Contrôle Officiel Suisse des Chronomètres (COSC) and receives chronometer certification. This guarantees a high level of accuracy, typically within -4/+6 seconds per day. However, Rolex's internal standards are even stricter, ensuring even greater precision.

* Date Function: The Calibre 2231 incorporates a date complication, providing a practical and useful function for everyday wear. The date display is typically located at the 3 o'clock position on the dial.

* Parachrom Hairspring: A significant feature of the 2231 is the Parachrom hairspring. This hairspring is made from a paramagnetic alloy, making it highly resistant to magnetic fields and temperature variations. This is crucial for maintaining accuracy, as magnetic fields can significantly affect the performance of a traditional hairspring. The Parachrom hairspring also offers greater resistance to shocks and vibrations.review rolex movement 2231

* High-Quality Materials and Construction: The 2231 is constructed from high-quality materials and assembled with meticulous attention to detail. This ensures long-term reliability and durability. The movement is designed to withstand the rigors of daily wear and tear.

* Frequency: The 2231 typically beats at a frequency of 28,800 vibrations per hour (4 Hz). This higher frequency contributes to greater accuracy and smoother seconds hand movement.

* Jewels: The movement utilizes strategically placed jewels to reduce friction and wear on moving parts. The number of jewels varies depending on the specific configuration of the movement, but they are always chosen and placed to optimize performance and longevity.

Comparison with Other Rolex Movements:

To fully appreciate the Calibre 2231, it's helpful to compare it to other notable Rolex movements:

* Rolex 2235: The 2231 is closely related to the Rolex Calibre 2235. The 2235 is a slightly older movement with similar characteristics, serving as a predecessor to the 2231. The 2231 often incorporates improvements and refinements over the 2235, reflecting Rolex's continuous pursuit of innovation. The differences between the two are often subtle, focusing on enhanced efficiency, durability, and ease of servicing.

* Rolex 3135: The Calibre 3135 is one of Rolex's most iconic and widely used movements. It's a robust and highly accurate self-winding movement with a date function. The 3135 is larger than the 2231 and is typically found in men's watches. While the 2231 shares the same core principles of accuracy and reliability, it's designed for smaller cases and may have a slightly simpler construction.

* Rolex 3155 Movements & Rolex Double Quick Set 3155: The Rolex Calibre 3155 is another significant movement, particularly known for its day-date complication. The "double quick set" feature allows for independent adjustment of both the day and date. The 2231, being a date-only movement, lacks this feature. The 3155 is generally a more complex and larger movement than the 2231.