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Dr.Smellody · 11 October 2023, 12:16 PM

Hi everyone,

I'm not finding an oRing size for a 7995 Oyster caseback.

Dad's 7995:

I sourced a new tropic 25-12 crystal but need to identify the correct caseback oRing.

Any and all help appreciated.

Thanks everyone.

linesiders · 11 October 2023, 09:55 PM

My assumption is it uses same gasket as similar cases with that crystal - No Date 34MMs. XRef those cases, come up with a few possibilities and veelolla ; )

Some charts to help you out

Dr.Smellody · 12 October 2023, 12:43 AM

Quote:

Originally Posted by linesiders

My assumption is it uses same gasket as similar cases with that crystal - No Date 34MMs. XRef those cases, come up with a few possibilities and veelolla ; )

Some charts to help you out

Thanks! I did find that one. Surprised I can't find a chart with 7995 included. They were numerous.

TuRo · 12 October 2023, 12:49 AM

Agree should be std 34mm no date.

Nice, I'm guessing 1964-68 piece ( as t Swiss t and small rose ).

Dr.Smellody · 4 November 2023, 06:44 AM

Dad's 7995 with new factory crystal and gaskets.

The caseback crystal was: OR 528 A (528A, 29-528A); ref. 29-292-7

Thanks Xeramic for the info!

R.W.T. · 5 November 2023, 02:45 PM

Rolex Part 528A O Ring.

11 October 2023, 12:16 PM	#1
Dr.Smellody "TRF" Member Join Date: Apr 2014 Location: Salem, OR Posts: 5,256	Tudor 7995 Caseback oRing size Hi everyone, I'm not finding an oRing size for a 7995 Oyster caseback. Dad's 7995: I sourced a new tropic 25-12 crystal but need to identify the correct caseback oRing. Any and all help appreciated. Thanks everyone.

12 October 2023, 12:49 AM	#4
TuRo "TRF" Member Join Date: Jan 2022 Real Name: Paul Location: Cantabrigia - G.B Watch: ing the detectives Posts: 2,633	Agree should be std 34mm no date. Nice, I'm guessing 1964-68 piece ( as t Swiss t and small rose ). __________________ How many times have I been downhearted Looked up and see him smiling like a shiny dime And hoped that he would stay and tell me Why he was so happy if he had the time Everybody Gets To Go To The Moon - Jimmy Webb

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4 November 2023, 06:44 AM	#5
Dr.Smellody "TRF" Member Join Date: Apr 2014 Location: Salem, OR Posts: 5,256	Dad's 7995 with new factory crystal and gaskets. The caseback crystal was: OR 528 A (528A, 29-528A); ref. 29-292-7 Thanks Xeramic for the info!

5 November 2023, 02:45 PM	#6
R.W.T. "TRF" Member Join Date: Feb 2014 Location: Central Texas Posts: 1,973	Rolex Part 528A O Ring.

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