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timelord · 18 February 2015, 11:56 AM

I have a 1803 DD with case being in very badly condition.

I have seen 18k gold 1601 datejust for sale from time to time as a back up and was considering at one stage for a case replacement, but have always hesitated as the 1556 movement is slightly thicker than the 1575 mvt that comes in the datejust (don't mind the numbers being different as it is sentimental to me)

My concern (and perhaps this is where Rikki can come to the rescue as well) is whether the 1803 case the same thickness and specs as the 1601 case because of the reason I mentioned?

Are the thickness of both cases the same and would a 1556 mvt fit into a 1601case without any major modifications????

many thanks in advance to all!!!

Rikki · 18 February 2015, 12:13 PM

Have to check on that but doubtful it will work

breitlings · 25 February 2015, 12:28 PM

I doubt it. I know the outside seems different.

sdwtchlvr · 25 February 2015, 02:27 PM

If it helps I have an 18038 and 16018, both 18k cases and the case dimensions are not the same. The 18038 is quite a bit thicker and the lugs are thicker too.

timelord · 25 February 2015, 09:01 PM

Quote:

Originally Posted by sdwtchlvr

If it helps I have an 18038 and 16018, both 18k cases and the case dimensions are not the same. The 18038 is quite a bit thicker and the lugs are thicker too.

The 1803 and the 18038 are also different in case dimensions as I also had a 18038. My mystery is the comparison of the 1803 case dimensions with the 1601 case as they may not have translated in size difference as their later models that replaced them. cannot find any data on the either!!!!,

southtexas · 7 March 2015, 02:53 PM

I just "eyeballed" my 1601 and 1807 cases, and the 1807 definitely looks thicker. I presume the 1556 movement is "fatter" than the 1570?

jvmartin · 7 March 2015, 06:08 PM

The 1556 movement will not work in the 1601 case.

timelord · 7 March 2015, 11:27 PM

Quote:

Originally Posted by southtexas

I just "eyeballed" my 1601 and 1807 cases, and the 1807 definitely looks thicker. I presume the 1556 movement is "fatter" than the 1570?

Quote:

Originally Posted by jvmartin

The 1556 movement will not work in the 1601 case.

Gentlemen, Thanks for your feedback. Much appreciated!!!!!

18 February 2015, 11:56 AM	#1
timelord "TRF" Member Join Date: Mar 2007 Location: Margate Watch: your back Posts: 324	is the 1601 datejust and 1803 DD case exactly the same? I have a 1803 DD with case being in very badly condition. I have seen 18k gold 1601 datejust for sale from time to time as a back up and was considering at one stage for a case replacement, but have always hesitated as the 1556 movement is slightly thicker than the 1575 mvt that comes in the datejust (don't mind the numbers being different as it is sentimental to me) My concern (and perhaps this is where Rikki can come to the rescue as well) is whether the 1803 case the same thickness and specs as the 1601 case because of the reason I mentioned? Are the thickness of both cases the same and would a 1556 mvt fit into a 1601case without any major modifications???? many thanks in advance to all!!!

18 February 2015, 12:13 PM	#2
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	Have to check on that but doubtful it will work __________________ Century 21 Certified watchmaker Omega Service Provider Trained Omega OWME Certified. Rolex Parts Account Holder.

7 March 2015, 02:53 PM	#6
southtexas 2024 ROLEX SUBMARINER 41 Pledge Member Join Date: May 2011 Location: Great State of TX Posts: 5,763	I just "eyeballed" my 1601 and 1807 cases, and the 1807 definitely looks thicker. I presume the 1556 movement is "fatter" than the 1570? __________________ Forty six & 2 are just ahead of me. Follow me on Instagram @ccrolex

25 February 2015, 12:28 PM	#3
breitlings Banned Join Date: Jul 2014 Location: Bethesda Watch: Apple TV Posts: 5,744	I doubt it. I know the outside seems different.

25 February 2015, 02:27 PM	#4
sdwtchlvr "TRF" Member Join Date: Sep 2008 Location: SoCal Watch: Rolex Posts: 1,308	If it helps I have an 18038 and 16018, both 18k cases and the case dimensions are not the same. The 18038 is quite a bit thicker and the lugs are thicker too.

7 March 2015, 06:08 PM	#7
jvmartin "TRF" Member Join Date: Feb 2014 Location: Los Angeles Posts: 2,349	The 1556 movement will not work in the 1601 case.

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