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swatty · 10 January 2011, 06:44 PM

Cosc is -6 to +4 sec per day , your watch should be within this range after a service. Was it done by Rolex Service Centre (RSC) ?

10 January 2011, 06:44 PM	#2
swatty 2025 TitaniumYM Pledge Member Join Date: Dec 2007 Real Name: Peter Location: Sydney Watch: The Game Posts: 17,416	Cosc is -6 to +4 sec per day , your watch should be within this range after a service. Was it done by Rolex Service Centre (RSC) ?