Need help authenticating certificate for a GMT 16710 black dial

[boon626]

Hello all,

I'm in the market to buy a ROLEX GMT came across this GMT 16710 BLACK dial and need some help with a few question:

Q1:
I was wondering why the green tag model no 16710LN was no matching the Rolex certificate which shown only 16710 without the LN.





Q2: The seller, which is a local watch shop offer to replaced the watch sapphire crystal ( without a coronet/ laser etched and with minor scratches ) with an original one and was wondering how this would effect the water resistance of the watch.
The replacement was not done at Rolex center though.

Q3: The watch shop claim that the watch is in great condition and running well hence would not required any service. Would I factor in service fees in a few years time without knowing the history of yhe watch. Anyway to know the condition of the movement just by looking inside from the back?

Sorry throwing a lot of questions as I have never bought a used Rolex and I need help to learn more about this watch before I pull the trigger.

Here another few pics to go:






Seller offer to change to Pepsi bezel FOC :




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[Old Expat Beast]

The certificate looks like a normal Hong Kong Rolex certificate. The LN refers to the bezel colour...black. The date on it matches the D serial, and the watch looks fine. I would try to get the Pepsi bezel included in the price as an extra, rather than a switch.

[1bad750]

Looks like a mint watch, no stretch and clean case. Sticker still on the back means it wasn't a daily wear

[boon626]

Originally Posted by Old Expat Beast

The certificate looks like a normal Hong Kong Rolex certificate. The LN refers to the bezel colour...black. The date on it matches the D serial, and the watch looks fine. I would try to get the Pepsi bezel included in the price as an extra, rather than a switch.

Thanks for the prompt reply. So you mean that the HK Rolex Certificate without the LN is original although the green tag shown is 16710LN?

Great idea about to getting the black insert together with the Pepsi...however the seller seems firm on the price & what comes with it.

My only concern is with the change of the sapphire crystal of the watch, afraid that there might be some other part not original.



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[boon626]

Originally Posted by 1bad750

Looks like a mint watch, no stretch and clean case. Sticker still on the back means it wasn't a daily wear

Yes, a mint watch. If not with the sapphire crystal need replacement with an original one, It'll be on my wrist now.... Thinking of skipping it but seeing the WG PEPSI GMT pictures just spark my interest on this watch again.




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[Old Expat Beast]

Originally Posted by boon626

Thanks for the prompt reply. So you mean that the HK Rolex Certificate without the LN is original although the green tag shown is 16710LN?

Great idea about to getting the black insert together with the Pepsi...however the seller seems firm on the price & what comes with it.

My only concern is with the change of the sapphire crystal of the watch, afraid that there might be some other part not original.



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No, don't worry about the LN thing at all. I wouldn't worry about the new crystal, either, but buying a watch like that I would probably take it to Rolex for service anyway. But that's cos its cheap here, Malaysia may be more expensive. If the watch keeps good time, and the rotor isn't audible when you shake the watch, there's probably no need to service it for now.

[Old Expat Beast]

PS: Just note that this is a newer GMT that does not have lug holes in the case...some people prefer them for ease of changing straps and more 'classic' appearance. Doesn't really effect the price at all, maybe upwards if anything.

[padi56]

Originally Posted by boon626

Thanks for the prompt reply. So you mean that the HK Rolex Certificate without the LN is original although the green tag shown is 16710LN?

Great idea about to getting the black insert together with the Pepsi...however the seller seems firm on the price & what comes with it.

My only concern is with the change of the sapphire crystal of the watch, afraid that there might be some other part not original.



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It was mainly on the USA warranty papers that the LN to donate say black insert Europe rest of the world mostly had no indication of insert just ref number.Regarding the crystal if watch has passed its pressure check then it will be fine no matter who put the crystal in have it pressure checked to be sure.But I would wait until routine service time then if crystal needs changing have it changed then as it will not incur any labour charge as they have to strip watch down, but you have to pay for the crystal but not real expensive.Regarding the LEC in the crystal there have been reports that even from Rolex when crystal replaced no LEC. And some with a S through the LEC as a service replacement and some with just a LEC others none.Today nothing is written in stone with Rolex regarding the watch it looks fine see if you can get a extra insert as that's a bonus two different watches then for the price of one.And watch is still a youngster so would doubt if any internal parts have been changed but if watch has not been serviced I would budget for a full RSC service sooner than later.After service you will have peace of mind and watch will be warranted for two years then after with owner care keeping clean with just soap and water and routine service watch will last a life time and beyond

[bayerische]

Looks fine. I don't think the crystal is a deal breaker. If the watch is great otherwise. A crystal change at the AD (if they do it without a service) is about 150 euro.

[boon626]

Originally Posted by Old Expat Beast

No, don't worry about the LN thing at all. I wouldn't worry about the new crystal, either, but buying a watch like that I would probably take it to Rolex for service anyway. But that's cos its cheap here, Malaysia may be more expensive. If the watch keeps good time, and the rotor isn't audible when you shake the watch, there's probably no need to service it for now.

The nearest Rolex service center is in Singapore, and according to my local AD, the cost will bee USD600-750, for servicing. Crystal replacement would be around USD 200 on top of that.

The watch shop will warrant the watch for 1 year and change of the crystal will be done by the shop included in the selling price.

I'll try your shake the watch method though... Thanks, Adam.


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[boon626]

Originally Posted by Old Expat Beast

PS: Just note that this is a newer GMT that does not have lug holes in the case...some people prefer them for ease of changing straps and more 'classic' appearance. Doesn't really effect the price at all, maybe upwards if anything.

I like the one without lug holes as I don't change the straps very often... But what interest me is the condition of the watch.


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[JP Chestnut]

I can't see the state of the chamfers, but otherwise the watch looks nice.

[boon626]

Originally Posted by padi56

It was mainly on the USA warranty papers that the LN to donate say black insert Europe rest of the world mostly had no indication of insert just ref number.Regarding the crystal if watch has passed its pressure check then it will be fine no matter who put the crystal in have it pressure checked to be sure.But I would wait until routine service time then if crystal needs changing have it changed then as it will not incur any labour charge as they have to strip watch down, but you have to pay for the crystal but not real expensive.Regarding the LEC in the crystal there have been reports that even from Rolex when crystal replaced no LEC. And some with a S through the LEC as a service replacement and some with just a LEC others none.Today nothing is written in stone with Rolex regarding the watch it looks fine see if you can get a extra insert as that's a bonus two different watches then for the price of one.And watch is still a youngster so would doubt if any internal parts have been changed but if watch has not been serviced I would budget for a full RSC service sooner than later.After service you will have peace of mind and watch will be warranted for two years then after with owner care keeping clean with just soap and water and routine service watch will last a life time and beyond

Thanks for the info Peter, I was not sure about the certificate/ green tag authenticity as the model no does not match. I have never bought a used Rolex before so have doubts over the watch.

There are some minor scratches on the crystal that the seller informed me before I took a closer look. He told me that they are going to replace it with an original one but not at Rolex service center though, hence not sure whether it pressure tested.

After factor in the Rolex center service cost, the price of the watch would be toward a used black dial ceramic GMT 2...still not sure whether or not to take the plunge...

Really like this watch... Been searching some time for a mint one, if I skip this one, not sure when will I see one in this condition, I mean here in my country.






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[boon626]

Originally Posted by bayerische

Looks fine. I don't think the crystal is a deal breaker. If the watch is great otherwise. A crystal change at the AD (if they do it without a service) is about 150 euro.

Andreas, the watch is great aside the crystal. Change of crystal at nearest Rolex Center would be around USD200 or 150euro, but according to my AD, ROLEX Service center would only do the replacement together with a full service, which will put aside USD750 - 850 on top on the watch price.


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