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finance21 · 16 March 2007, 06:27 AM

I am curious; does anybody know when Rolex employed the trip-lock crown?

mike · 16 March 2007, 06:58 AM

I believe the early Triplock without O-ring came about around 1972. With O-ring around 1979 or so.

finance21 · 16 March 2007, 08:01 AM

Thanks, I am just trying to tell if the crown on my 5513 is original or has been replaced at some point. Since it is 1.7 mill serial without trip lock and lacking the rubber o-ring can I assume it is original?

mike · 16 March 2007, 08:34 AM

I'd say so since the ser. no. puts it about 1968 or so.

16 March 2007, 06:27 AM	#1
finance21 2024 Pledge Member Join Date: Dec 2006 Location: U.S.A Posts: 363	Trip Lock Crown I am curious; does anybody know when Rolex employed the trip-lock crown?

16 March 2007, 06:58 AM	#2
mike "TRF" Member Join Date: Jul 2005 Posts: 22,683	I believe the early Triplock without O-ring came about around 1972. With O-ring around 1979 or so.

16 March 2007, 08:01 AM	#3
finance21 2024 Pledge Member Join Date: Dec 2006 Location: U.S.A Posts: 363	Thanks, I am just trying to tell if the crown on my 5513 is original or has been replaced at some point. Since it is 1.7 mill serial without trip lock and lacking the rubber o-ring can I assume it is original?

16 March 2007, 08:34 AM	#4
mike "TRF" Member Join Date: Jul 2005 Posts: 22,683	I'd say so since the ser. no. puts it about 1968 or so.

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