The Breitling Navitimer, a horological icon synonymous with aviation history and precision engineering, is a watch many aspire to own. Its complex movement and robust construction, however, also mean that servicing or even simple case back removal can present challenges for the uninitiated. This article delves into the process of disassembling a Breitling Navitimer case, specifically focusing on the removal of the case back, offering practical advice, safety precautions, and relevant considerations. While we will focus on the practical aspects of removing the case back, we will also touch upon the broader context of Navitimer ownership, covering topics like pricing, models, and sourcing pre-owned pieces.
My recent experience attempting to remove the case back of my Navitimer highlighted the importance of careful preparation and the right tools. I purchased a wrench specifically designed for this purpose, ensuring all flat surfaces aligned perfectly. Despite this, even with hand tightening initially, and then employing the leverage of a channel-lock pliers, I encountered significant resistance. This experience underscores the need for caution and a deeper understanding of the process.
The Importance of the Right Tools and Technique:
Before we embark on the actual disassembly, let's emphasize the critical role of the correct tools. Attempting to remove the case back with improper tools can result in damage to the watch case, the crystal, or even the movement itself. The investment in a proper case back wrench is crucial and far outweighs the potential cost of repairs. These wrenches are specifically designed to fit the case back's unique shape and provide even pressure distribution, minimizing the risk of slippage and damage. Improvising with tools like channel-locks, while seemingly viable in some situations, is generally discouraged for a watch as delicate and valuable as a Navitimer. The pressure exerted by these tools can be uneven, leading to scratches, dents, or worse.
Step-by-Step Guide (with caveats):
This guide provides a general overview. It is not a substitute for professional watchmaking expertise. Attempting to disassemble your Navitimer without the necessary skills and knowledge is strongly discouraged. The following steps are provided for informational purposes only. If you are unsure about any step, seek the assistance of a qualified watchmaker.
1. Preparation: Ensure you are working in a clean, well-lit environment. Gather your tools: the correct case back wrench, a soft cloth, and possibly a small bowl to hold any removed parts.
2. Inspect the Case Back: Carefully examine the case back for any markings or engravings that might indicate specific tools or techniques required for removal.
3. Secure the Watch: Hold the watch firmly but gently. Avoid applying excessive pressure.
4. Applying the Wrench: Position the wrench correctly onto the case back. Ensure that all contact points are aligned perfectly.
5. Gentle Application of Force: Begin by applying gentle, even pressure. Avoid sudden jerky movements. If the case back is particularly tight, you may need to apply more pressure, but always proceed cautiously.
6. Removal: Once the case back begins to loosen, continue turning it slowly and steadily. Once removed, carefully set the case back aside in a safe place to prevent scratching or damage.
What to Expect and Potential Problems:
Even with the right tools, removing the case back of a Navitimer can be challenging. The case back is often tightly secured, requiring significant force. You may encounter resistance, and in some cases, the case back might be stuck due to corrosion or sealant. If you encounter significant resistance or feel that you are applying excessive force, stop immediately and seek professional help. Forcing the case back can cause irreparable damage.
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