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robfxlr · 20 June 2007, 01:38 PM

Both watches are basically the same with cosmetic differences, I thought. Why is the Sub waterproof to 300M and the YM to only 100M?

The Mole · 20 June 2007, 01:45 PM

As far as I know the Yachtmaster has a Twinlock crown and the Sub has the Triplock. This may not account for the 200M diff, but I'm sure it has alot to do with it.

The new GMT Master II has the Triplock crown and I believe the water resistance will be similar to the Submariner even though it is not being advertised.

Jocke · 20 June 2007, 01:51 PM

Quote:

Originally Posted by The Mole

As far as I know the Yachtmaster has a Twinlock crown and the Sub has the Triplock. This may not account for the 200M diff, but I'm sure it has alot to do with it.

The new GMT Master II has the Triplock crown and I believe the water resistance will be similar to the Submariner even though it is not being advertised.

Sorry The Mole but fullsize YM have the TripLock crown.
The Sub and YM is build the same way so I will say the YM
is good for 300 meters even if Rolex only rate it at 100 meters.
The reason is YM is not a diver watch and Rolex only rate the
diver watches 300 meters or more.

Jocke

robfxlr · 20 June 2007, 01:57 PM

My gold YM with white dial is a full size and looks like the crown locks exactly like my Serti Sub - TT . My guess was also that the YM is not considered a diver's watch and that was the only reason it was not rated for 300M.....hmmmm.................................... .......

sheldonsmith · 20 June 2007, 02:02 PM

(GMT on the bottom, Sub on the Top)

The caseback on the diving watches (Sub and SD) are thicker. The cases are similar, the crystal (except the SD), bezel, and tube/crown are similar. The only difference is the caseback. Apparently, the caseback is significant in water resistance as the caseback gets thicker as the water rating increases. Look at the caseback difference between the 100M (Datejust, GMT, Yachtmaster), 300M (Sub), and 1000M (SD) watches. The casebacks become thicker as the depth rating increases.

-Sheldon

robfxlr · 20 June 2007, 02:25 PM

I'll but that - sounds believable. Thanks................

20 June 2007, 01:38 PM	#1
robfxlr Member Join Date: Apr 2007 Location: florida Posts: 61	YM vs Sub water resistance question......... Both watches are basically the same with cosmetic differences, I thought. Why is the Sub waterproof to 300M and the YM to only 100M?

20 June 2007, 01:45 PM	#2
The Mole "TRF" Member Join Date: Jun 2007 Location: Bay Area Watch: 116520 Posts: 256	As far as I know the Yachtmaster has a Twinlock crown and the Sub has the Triplock. This may not account for the 200M diff, but I'm sure it has alot to do with it. The new GMT Master II has the Triplock crown and I believe the water resistance will be similar to the Submariner even though it is not being advertised. __________________ The Mole "Time is inseparable from existence for us ... It enables the real world not simply to be, but to become." Prof. Albert Facquard Inaugural Conference of the 12th International Chronometer Congress, October 2004.

20 June 2007, 01:57 PM	#4
robfxlr Member Join Date: Apr 2007 Location: florida Posts: 61	Divers watch.......... My gold YM with white dial is a full size and looks like the crown locks exactly like my Serti Sub - TT . My guess was also that the YM is not considered a diver's watch and that was the only reason it was not rated for 300M.....hmmmm.................................... .......

20 June 2007, 02:02 PM	#5
sheldonsmith 2024 Pledge Member Join Date: Nov 2005 Location: Member 202♛ Posts: 1,815	Look at the caseback... (GMT on the bottom, Sub on the Top) The caseback on the diving watches (Sub and SD) are thicker. The cases are similar, the crystal (except the SD), bezel, and tube/crown are similar. The only difference is the caseback. Apparently, the caseback is significant in water resistance as the caseback gets thicker as the water rating increases. Look at the caseback difference between the 100M (Datejust, GMT, Yachtmaster), 300M (Sub), and 1000M (SD) watches. The casebacks become thicker as the depth rating increases. -Sheldon __________________

20 June 2007, 02:25 PM	#6
robfxlr Member Join Date: Apr 2007 Location: florida Posts: 61	I'll but that - sounds believable. Thanks................

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