Curved spring bars: great idea, or eventual lug damage?

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I see many leather straps are offered with curved ends, that seem to hug the curve of the round watch head more closely, so the idea is reasonable.

But…the spring bars must be fitting into the lug hole at an angle, potentially causing abnormal wear, especially with stainless bars on a gold case.

Theoretical damage is one thing, but practical is another. Any long-time users of these see greater wear at the lug holes than anticipated? Do you like them in general, or deem them unnecessary?
 
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I see many leather straps are offered with curved ends, that seem to hug the curve of the round watch head more closely, so the idea is reasonable.

But…the spring bars must be fitting into the lug hole at an angle, potentially causing abnormal wear, especially with stainless bars on a gold case.

Theoretical damage is one thing, but practical is another. Any long-time users of these see greater wear at the lug holes than anticipated? Do you like them in general, or deem them unnecessary?

Omega curved-end straps use a straight spring bar. The straps are designed this way to fit the case precisely. I know of some other curved straps that do the same.

So with this, there is no different wear than on a bracelet or regular strap.

I use curved bars on my NATO straps all the time and haven’t noticed any abnormal wear. They are only marginally curved away from straight though.

I can’t imagine there would be any significant abnormal wear unless the bar is extremely curved, and then I doubt it would work well in the first place.
 
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I've had a few watches, gold and steel, with curved lugs and have never had a problem with any lug hole damage. I have an AP that was made in 1992 with curved lugs and it's as tight today as it was then.