It is a "limited production" piece. We don't know what that means in terms of actual production numbers. Anecdotally we know that OBs and ADs don't always have them in stock, unlike the other DSOM models. They are not significantly discounted in the grey market. Secondary market prices are seem to be stable as well.
Not sure what you mean by daily rough wear... It does not have a screw down crown or case back. Water resistance is the same as other Speedmasters. It has a ceramic case so I wouldn't wear it to a construction site or while working on a car.
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