in the past, panerai owners' usually tell me that they can custom make different straps and mount on their watches to have various look. fast forward 2016, due to the availability of end links, rolex owners can now choose to custom leather straps with the fitted end links so that there is no gap between the leather strap and the case.
below shows a rolex watch with custom green color leather strap
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another consideration is everest curved leather
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besides custom leather strap, the rolex can also be worn with leather NATO with PVD ring as shown below
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some watch owners prefer not to wear leather, hence they can consider other options such as rubber by hirsch as shown below
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besides hirsch rubber strap, one of the other options is the isofran as shown below
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sometimes a "tanned" leather NATO will also give it a different look
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do note that there are many other options available to pair with rolex such as ZULU
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as one can see, there are many different straps you can pair with your rolex to match any occasions or your mood
below shows a rolex watch with custom green color leather strap

another consideration is everest curved leather

besides custom leather strap, the rolex can also be worn with leather NATO with PVD ring as shown below

some watch owners prefer not to wear leather, hence they can consider other options such as rubber by hirsch as shown below

besides hirsch rubber strap, one of the other options is the isofran as shown below

sometimes a "tanned" leather NATO will also give it a different look

do note that there are many other options available to pair with rolex such as ZULU

as one can see, there are many different straps you can pair with your rolex to match any occasions or your mood