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Voltesvdx · 5 November 2018, 05:46 AM

I recently purchased a 2007 Submariner with unknown service history. I put it on one of those timeographers and results came out as +4 sec per day, 270 Amplitude, Beat Error of 0.3ms.

Took the watch to one AD and they said it should be serviced since it was out of COSC specs and service history is unknown. He said it should be -2 to +2 (which I thought was just for the newer watches)

Took to a second AD and he said it is within COSC specs -4 to +6 for my particular watch (which is what I thought) and said he didn't think it needed to be serviced at this time.

So I'm a little torn here...looking for some additional input given I'm getting two different recommendations from two different Rolex AD's.

Based on this info which COSC range should I follow and should I service the watch given it's unknown service history?

beshannon · 5 November 2018, 05:52 AM

Your watch is within the COSC specs -4 to +6.

It is fine. If you want it serviced that is up to you. Could it be regulated to perform better? Maybe. Do you need it to be more accurate? I would be happy with it and enjoy wearing it.

Tools · 5 November 2018, 05:53 AM

The -4/+6 specs are for the COSC mean test, which your watch only had to undergo once, and is never tested again.

The oft spoken "It's within COSC" is actually a misnomer as this standard is not used by Rolex for an out-the-door watch. Indeed, the new Rolex timing standard is -2/+2, but COSC criteria for a chronometer is still the same; a 10 second swing (-4/+6) during testing.

If your watch is not timed within your personal needs, have it regulated. It may not need a "service" at all if there is nothing wrong with it except for timing.

The first AD just wanted to sell you a service.

DenaliHD · 5 November 2018, 05:54 AM

Never know if it has been serviced. 11 years old- that is service territory. For me- I would send it in for a service. You have some piece of mind.

Finslayer83 · 5 November 2018, 06:04 AM

mine is a 2007 that I got this year - once I decided it was the keeper off to Rik it went.

RJRJRJ · 5 November 2018, 06:05 AM

Don't waste your money. +4 is fine, especially if it's consistent.

The Libertine · 5 November 2018, 07:04 AM

Quote:

Originally Posted by RJRJRJ

Don't waste your money. +4 is fine, especially if it's consistent.

Please listen to this recommendation.

There is no reason to open the watch, and adjust the movement for a watch that is +4 seconds. The less a watch is opened the better.

Voltesvdx · 6 November 2018, 01:49 AM

All.
Thank you so much for the thoughtful responses. As usual very helpful.

gt0279a · 6 November 2018, 02:25 AM

Quote:

Originally Posted by The Libertine

Please listen to this recommendation.

There is no reason to open the watch, and adjust the movement for a watch that is +4 seconds. The less a watch is opened the better.

It may be worth it to have the seals checked though if the OP plans on taking it in the water.

JacksonStone · 6 November 2018, 03:53 AM

Quote:

Originally Posted by gt0279a

It may be worth it to have the seals checked though if the OP plans on taking it in the water.

A simple dry pressure check can test the seals. There's no need to open the case for that.

shaunylw · 6 November 2018, 04:01 AM

Quote:

Originally Posted by beshannon

Your watch is within the COSC specs -4 to +6.

It is fine. If you want it serviced that is up to you. Could it be regulated to perform better? Maybe. Do you need it to be more accurate? I would be happy with it and enjoy wearing it.

Agreed. I would wear it and be happy with it. If you want to service, that's up to you. I am not a huge fan of servicing due to lack of knowledge on service history unless it's running poorly or won't pass a pressure test.

kingSubTT · 6 November 2018, 04:03 AM

If you believe the watch is real and all parts inside are genuine, there is no reason to send it to RSC. However if you want to spend $900 for peace of mind and get a watch back in new condition, do it.

Dsmith1974 · 6 November 2018, 05:03 AM

TG readings are fine, but I wouldn’t trust the seals after ten years. You could get the seals replaced without a full service, but a service wouldn’t be a bad idea if you’re going to keep the watch for a long time.

JohnFair · 6 November 2018, 05:13 AM

I shifted my Explorer II back and forth to wind it and got a growling noise and grinding vibration so it went in for service. It had been 5 years since my last service. I had no problems with it keeping time. It should be back today or tomorrow.

Anyone know if one can contact Rolex Service Center with their serial number and get the service history? I will be inheriting my Fathers Rolex and am a little curious.

5 November 2018, 05:46 AM	#1
Voltesvdx "TRF" Member Join Date: Feb 2017 Location: US Posts: 73	Need help with Rolex Servicing and COSC specs I recently purchased a 2007 Submariner with unknown service history. I put it on one of those timeographers and results came out as +4 sec per day, 270 Amplitude, Beat Error of 0.3ms. Took the watch to one AD and they said it should be serviced since it was out of COSC specs and service history is unknown. He said it should be -2 to +2 (which I thought was just for the newer watches) Took to a second AD and he said it is within COSC specs -4 to +6 for my particular watch (which is what I thought) and said he didn't think it needed to be serviced at this time. So I'm a little torn here...looking for some additional input given I'm getting two different recommendations from two different Rolex AD's. Based on this info which COSC range should I follow and should I service the watch given it's unknown service history?

5 November 2018, 05:52 AM	#2
beshannon "TRF" Member Join Date: Jun 2009 Real Name: Brian Location: Northern Virginia Watch: One of Not Many Posts: 17,892	Your watch is within the COSC specs -4 to +6. It is fine. If you want it serviced that is up to you. Could it be regulated to perform better? Maybe. Do you need it to be more accurate? I would be happy with it and enjoy wearing it. __________________ IWC Portugieser 7 Day, Omega Seamaster SMP300m, Vacheron Constantin Traditionnelle Complete Calendar, Glashutte PanoInverse, Glashutte SeaQ Panorama Date, Omega Aqua Terra 150, Omega CK 859, Omega Speedmaster 3861 Moonwatch, Breitling Superocean Steelfish, JLC Atmos Transparent Clock

5 November 2018, 05:53 AM	#3
Tools TRF Moderator & 2024 SubLV41 Patron Join Date: May 2007 Real Name: Larry Location: Mojave Desert Watch: GMT's Posts: 43,488	The -4/+6 specs are for the COSC mean test, which your watch only had to undergo once, and is never tested again. The oft spoken "It's within COSC" is actually a misnomer as this standard is not used by Rolex for an out-the-door watch. Indeed, the new Rolex timing standard is -2/+2, but COSC criteria for a chronometer is still the same; a 10 second swing (-4/+6) during testing. If your watch is not timed within your personal needs, have it regulated. It may not need a "service" at all if there is nothing wrong with it except for timing. The first AD just wanted to sell you a service. __________________ (Chill ... It's just a watch Forum.....) NAWCC Member

6 November 2018, 04:03 AM	#12
kingSubTT "TRF" Member Join Date: Oct 2011 Location: USA Watch: SmurfDaytonaBLNR Posts: 682	If you believe the watch is real and all parts inside are genuine, there is no reason to send it to RSC. However if you want to spend $900 for peace of mind and get a watch back in new condition, do it. __________________ White Daytona 116520, Sub 116619LB, GMT II BLNR

6 November 2018, 05:13 AM	#14
JohnFair "TRF" Member Join Date: Apr 2014 Real Name: John Fair Location: Austin, MN Watch: Polar Explorer II Posts: 71	I shifted my Explorer II back and forth to wind it and got a growling noise and grinding vibration so it went in for service. It had been 5 years since my last service. I had no problems with it keeping time. It should be back today or tomorrow. Anyone know if one can contact Rolex Service Center with their serial number and get the service history? I will be inheriting my Fathers Rolex and am a little curious. __________________ May 2008 16570 red hand Polar Explorer II, 3185 caliber Mar 2017 116203 TT DJ36, Super Jubilee bracelet, smooth bezel, champagne stick dial, 3135 caliber

5 November 2018, 05:54 AM	#4
DenaliHD "TRF" Member Join Date: Dec 2012 Location: the South Watch: Tudor GMT Posts: 266	Never know if it has been serviced. 11 years old- that is service territory. For me- I would send it in for a service. You have some piece of mind.

5 November 2018, 06:04 AM	#5
Finslayer83 "TRF" Member Join Date: Oct 2017 Location: Tennessee Watch: DW-5600 Posts: 1,584	mine is a 2007 that I got this year - once I decided it was the keeper off to Rik it went.

5 November 2018, 06:05 AM	#6
RJRJRJ "TRF" Member Join Date: Aug 2011 Location: USA Posts: 3,495	Don't waste your money. +4 is fine, especially if it's consistent.

6 November 2018, 01:49 AM	#8
Voltesvdx "TRF" Member Join Date: Feb 2017 Location: US Posts: 73	All. Thank you so much for the thoughtful responses. As usual very helpful.

6 November 2018, 05:03 AM	#13
Dsmith1974 "TRF" Member Join Date: Sep 2018 Real Name: Duncan Location: London Watch: DD 40 Posts: 2,263	TG readings are fine, but I wouldn’t trust the seals after ten years. You could get the seals replaced without a full service, but a service wouldn’t be a bad idea if you’re going to keep the watch for a long time.

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