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CharlesGenta · 17 November 2017, 02:24 PM

Hi. Am pretty new to vintage watches. I'm looking for a replacement crystal for my Air-King 5500. I believe I need a Tropic 12. But I'm seeing references for "25-12".

Is this the same crystal?

R.W.T. · 17 November 2017, 08:21 PM

Same. Later Rolex numbering.

CharlesGenta · 17 November 2017, 09:22 PM

Ah ok. So no difference then. I was worried one might be original and the other a service replacement missing a signature or something.

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R.W.T. · 18 November 2017, 07:06 PM

They're all service replacements...:-) unless they came on the watch.

As to the profile etc...it's not a given thing by number designation.

There are no sigs on plastic crystals.

CharlesGenta · 18 November 2017, 11:49 PM

Is there a difference between the service replacement and the original?

Toronto Soup King · 19 November 2017, 12:42 AM

Quote:

Originally Posted by CharlesGenta

Is there a difference between the service replacement and the original?

Age

CharlesGenta · 19 November 2017, 07:24 AM

Thanks guys. Appreciate it.

R.W.T. · 19 November 2017, 02:16 PM

The older may have a different plexiglass material and a different profile but you won't be able to ascertain that from any numbering...it will be a hands on view that will tell. The fit should be the same regardless. Tropic 12 is a common crystal that fits many watches. Older rounded profile versions are a little tougher to locate.

17 November 2017, 02:24 PM	#1
CharlesGenta "TRF" Member Join Date: May 2016 Location: Seattle Watch: Red Sub 1680 Posts: 345	Rolex crystal Tropic 12 vs 25-12 Hi. Am pretty new to vintage watches. I'm looking for a replacement crystal for my Air-King 5500. I believe I need a Tropic 12. But I'm seeing references for "25-12". Is this the same crystal?

17 November 2017, 09:22 PM	#3
CharlesGenta "TRF" Member Join Date: May 2016 Location: Seattle Watch: Red Sub 1680 Posts: 345	Rolex crystal Tropic 12 vs 25-12 Ah ok. So no difference then. I was worried one might be original and the other a service replacement missing a signature or something. Sent from my iPhone using Tapatalk

17 November 2017, 08:21 PM	#2
R.W.T. "TRF" Member Join Date: Feb 2014 Location: Central Texas Posts: 1,973	Same. Later Rolex numbering.

18 November 2017, 07:06 PM	#4
R.W.T. "TRF" Member Join Date: Feb 2014 Location: Central Texas Posts: 1,973	They're all service replacements...:-) unless they came on the watch. As to the profile etc...it's not a given thing by number designation. There are no sigs on plastic crystals.

18 November 2017, 11:49 PM	#5
CharlesGenta "TRF" Member Join Date: May 2016 Location: Seattle Watch: Red Sub 1680 Posts: 345	Is there a difference between the service replacement and the original?

19 November 2017, 07:24 AM	#7
CharlesGenta "TRF" Member Join Date: May 2016 Location: Seattle Watch: Red Sub 1680 Posts: 345	Thanks guys. Appreciate it.

19 November 2017, 02:16 PM	#8
R.W.T. "TRF" Member Join Date: Feb 2014 Location: Central Texas Posts: 1,973	The older may have a different plexiglass material and a different profile but you won't be able to ascertain that from any numbering...it will be a hands on view that will tell. The fit should be the same regardless. Tropic 12 is a common crystal that fits many watches. Older rounded profile versions are a little tougher to locate.

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