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hawg · 8 January 2010, 09:58 AM

Does anyone know what the specs are for this watch as it relates to plus or minus seconds per day. What would the COSC standard be for this watch or does Rolex have the same standard all around.

Rikki · 9 January 2010, 01:50 PM

Same as all the cosc standards for rolex's movement is a 3035 calibre

Tools · 9 January 2010, 02:23 PM

COSC did not exist until after 1973. What COSC did was standardize the Swiss standard at -4 to +6 seconds per day (roughly... it really is more complicated than that)..

So, any watch after 1973 that has Chronometer on the dial had to have met those standards and been tested..

From ~1960 until COSC Standards in 1973, the "chronometer" standard was -1/+10

8 January 2010, 09:58 AM	#1
hawg "TRF" Member Join Date: Jun 2008 Location: Saskatchewan Posts: 263	Model 16013 Does anyone know what the specs are for this watch as it relates to plus or minus seconds per day. What would the COSC standard be for this watch or does Rolex have the same standard all around.

9 January 2010, 02:23 PM	#3
Tools TRF Moderator & 2024 SubLV41 Patron Join Date: May 2007 Real Name: Larry Location: Mojave Desert Watch: GMT's Posts: 43,514	COSC did not exist until after 1973. What COSC did was standardize the Swiss standard at -4 to +6 seconds per day (roughly... it really is more complicated than that).. So, any watch after 1973 that has Chronometer on the dial had to have met those standards and been tested.. From ~1960 until COSC Standards in 1973, the "chronometer" standard was -1/+10 __________________ (Chill ... It's just a watch Forum.....) NAWCC Member

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9 January 2010, 01:50 PM	#2
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	Same as all the cosc standards for rolex's movement is a 3035 calibre

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