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At the heart of the Deepsea’s case is Rolex’s patented Ringlock system, which uses a super hard, nitrogen-alloyed steel central ring to internally support both the extra-thick sapphire crystal and the Grade 5 titanium caseback. While the Ringlock system is largely responsible for the overall increase in the case size of the Deepsea, it actually enables the watch to be smaller than it otherwise would be, had it were to follow a more traditional case design while still retaining its same colossal depth rating.The primary purpose of the Ringlock system is to reduce the amount of stress placed on the case of the watch. As pressure on the watch increases at greater depths, the majority of it gets exerted on the front and back surfaces of the watch. Since the nitrogen-alloyed stainless steel compression ring internally supports both the crystal and the caseback of the Deepsea, the amount of force exerted on the actual case itself remains relatively minimal. Additionally, as the crystal and caseback get squeezed together, with the majority of the force being supported by the internal compression ring, the front and back gaskets of the watch get pressed together, ensuring an extra tight seal.The caseback on the Rolex Deepsea consists of two components: an inner caseback made from Grade 5 titanium, and an outer, screw-down caseback ring that is constructed from Oystersteel (904L stainless steel). With a traditional, single-piece, caseback design, the entirety of the pressure placed on caseback gets exerted on the case of the watch itself, particularly near the threads. By separating the caseback into two components, Rolex is able to redistribute much of the force being exerted on the rear surface of the watch. The outer, screw-down ring performs the sole duty of keeping the inner, titanium caseback tight on the watch, while the nitrogen-alloyed steel compression ring ultimately supports all the pressure being exerted on the titanium case-back itself.

In the world of luxury product acquisition, there are few things more distressing to the mind of a passionate collector than the thought of harm coming to their valued possessions. Yes, nothing in this realm can hold a candle to health or the well-being of one’s loved ones, but these small treasures, often rare or unique (and certainly expensive) hold a special place in the heart of one who has dedicated their time and effort to make them theirs.I am often asked if it is important to insure a collection of used luxury watches. In fact, I am asked it more often then makes conscionable sense to me, because the answer is simple: Yes, yes you should. And more to the point, if you own a luxury watch like a Rolex Submariner (let alone if you own numerous luxury watches) and you’re asking that question, you should save your breath for the insurance provider on the other end of the phone.And that’s really the best place to start. In this digital age, it seems we’ve all become a bit interaction-shy, but with a complex and potentially serious situation like making an insurance claim, it is always best to have set-up your policy having talked directly to another human being – an expert in their field. You really should leave nothing to chance. Don’t be afraid to ask stupid questions – insurance is complicated and rules and regulations vary from country to country (massively) and occasionally, even from region to region. If you move to a new area, don’t just assume that your previous policy will port seamlessly. Check it out. Trust me: It’s worth it.Having lived most of my life in the UK and Germany, I have intimate personal experience with moving a watch collection across borders. And the differences are stark. Some things are easier in some territories, and some things are harder, but the three things you should focus on first when looking into insuring your collection (or single watch) is the total value of your collection, how many “declarable” models you will need to put on your policy, and how all of this can affect your remaining contents insurance.So let’s start with the first point. This is relatively simple. Add up the retail value of the watches in your collection. When doing this, make sure you collate invoices and receipts (if possible) into a physical and digital folder. Scan everything, stick it in a PDF and email a copy to yourself rather than keeping it on your hard-drive alone (it stands to reason that if your property gets turned over your laptop may go the same way as your watches).