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Der Kollektor · 23 June 2018, 06:05 AM

Hi all,

I purchased a 1971 Oyster Perpetual 1003 on Ebay (yes, I know I know) with the intent to have it refinished and gifted. It was an estate sale. I since changed my mind gifted a new watch.

I am currently debating selling again or keeping, but was wondering about this weird black "lume"... was this tritium that turned black due to some exposure? Or simply black enamel painted over the lume? I've heard of watchmakers painting the back of watch hands to prevent lume erosion, but never the front. Has anyone ever seen this?

Did this ever come stock in the rolex line... it looks expertly done. The whole watch is in pristine condition and running within COSC.

Appreciate your help and any insight.

offrdmania · 23 June 2018, 06:45 AM

It looks like the only lume on your watch is on the hands. The lume on the hands sometimes turns black if it is exposed to moisture.

Here is my old late 70s 6694 and my old early 60s Tudor. the lume on the hands is the same. It is actually quite common

Tools · 23 June 2018, 06:56 AM

Looks like a CERN Datejust, which were produced without any radioactive materials.

Der Kollektor · 30 June 2018, 05:48 AM

Thank y'all. Very interesting... ended up selling it again anyway, but hopeful was helpful for the buyer!

Richard Carver · 30 June 2018, 08:49 AM

Black inserts are fairly common...

23 June 2018, 06:05 AM	#1
Der Kollektor "TRF" Member Join Date: Jun 2018 Location: NYC Posts: 2	Black Enamel in Place of Lume?... Stock? Custom? Hi all, I purchased a 1971 Oyster Perpetual 1003 on Ebay (yes, I know I know) with the intent to have it refinished and gifted. It was an estate sale. I since changed my mind gifted a new watch. I am currently debating selling again or keeping, but was wondering about this weird black "lume"... was this tritium that turned black due to some exposure? Or simply black enamel painted over the lume? I've heard of watchmakers painting the back of watch hands to prevent lume erosion, but never the front. Has anyone ever seen this? Did this ever come stock in the rolex line... it looks expertly done. The whole watch is in pristine condition and running within COSC. Appreciate your help and any insight. Attached Images

23 June 2018, 06:45 AM	#2
offrdmania 2025 TitaniumYM Pledge Member Join Date: May 2008 Real Name: Matt Location: Wine Country, Ca Posts: 6,062	Black Enamel in Place of Lume?... Stock? Custom? It looks like the only lume on your watch is on the hands. The lume on the hands sometimes turns black if it is exposed to moisture. Here is my old late 70s 6694 and my old early 60s Tudor. the lume on the hands is the same. It is actually quite common __________________ TRF Member 11738

23 June 2018, 06:56 AM	#3
Tools TRF Moderator & 2025 Titanium Yacht-Master Patron Join Date: May 2007 Real Name: Larry Location: Mojave Desert Watch: GMT's Posts: 43,686	Looks like a CERN Datejust, which were produced without any radioactive materials. __________________ (Chill ... It's just a watch Forum.....) NAWCC Member

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30 June 2018, 05:48 AM	#4
Der Kollektor "TRF" Member Join Date: Jun 2018 Location: NYC Posts: 2	Thank y'all. Very interesting... ended up selling it again anyway, but hopeful was helpful for the buyer!

30 June 2018, 08:49 AM	#5
Richard Carver "TRF" Member Join Date: Apr 2015 Location: US Posts: 2,237	Black inserts are fairly common...

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