Waterproof of Rolex

[shtukaturkasten]

Hi to All.
I have a few questions for the community regarding to the watch crown and waterproof. Rolex produced Triplock (GMT II, Sub) and Twinlock (EXP 2).
At the same time waterproof in GMT II ( triplock ) and EXP 2 ( twinlock ) - 100 meters, Sub has ( triplock ) - 300 meters.

All above mentioned models have body case Oyster.

1. Why GMT II is equiped by triplock with waterproof at 100m instead of twinlock?
2 . Due to anything other than the crown provides more waterproof in Sub compared to GMT?
3 . Triplock looks more massive and it is creates some discomfort owners, then why should it be put in the watch with water resistance to 100m?


P.S. Why Rolex does not indicate the thickness of sapphire in their models ? Please show me where to look.

[joe100]

1. Because more security is better
2. Yes, the Sub has a thicker case back and that matters greatly in water resistance
3. See one, and it's easier to grip. Manipulating the GMT crown happens a lot when changing timezones. If you've had the older GMTs you'll know the crown was a bit too thin.

Btw, welcome aboard!

[slm9555]

The sub has a thicker and heavier case back than the gmt. The bigger crown is more fitting of the larger frame watches, I wish the explorer had the larger crown too.

[T. Ferguson]

Originally Posted by joe100

1. Because more security is better
2. Yes, the Sub has a thicker case back and that matters greatly in water resistance
3. See one, and it's easier to grip. Manipulating the GMT crown happens a lot when changing timezones. If you've had the older GMTs you'll know the crown was a bit too thin.

Btw, welcome aboard!

Good answer, Joe. And you're right about the more frequent use of the crown on the GMT when used as a tool. In addition to the re-setting when changing TZs, position 2 on the GMT is the jump hour hand function, which means more manipulation is required whenever setting the date.

BTW, the GMT used to have the twinlock. I believe the improvement came with the 116710 ceramic model. Yes, I consider it an improvement.

As to why the EXII has the twinlock, well, the GMT is Rolex's flagship TZ watch and perhaps the EXII is generally designed to look sleeker and fly under the radar a bit more than the GMT. Personally, for tool purposes I'd prefer it also had the triplock.

[Rashid.bk]

Originally Posted by slm9555

The sub has a thicker and heavier case back than the gmt. The bigger crown is more fitting of the larger frame watches, I wish the explorer had the larger crown too.

I don't find the crown a discomfort at all, and haven't ever heard this as a major complaint. I wouldn't buy the GMT2c if it still had the tiny crown of the older models. Not only does it look disproportionate but it makes it harder to manipulate as stated above.

I too wish the Exp 2 had a trip lock crown, it looks extremely awkward to me that a 42" mm watch would have such a tiny crown especially one that may require frequent manipulation to adjust the hours. On that basis I don't even consider it, that's how important it is too me.

[shtukaturkasten]

Many thanks for answers.

Of course, the large crown is more comfortable for daily changing timezone.
But some owners of Sub (triplock as used in GMT) complain on hand callus due to crown rub sore their hand!
Is there someone who has a similar problem with Sub or GMT II?

May be, for GMT will be enough 7mm twinlock especially as waterproof to 300 meters it do not need.

[Cc1966]

No problem with the triple-lock crowns ~ bracelet sizing can affect comfort. Anton, what ship is in your avatar if you don't mind me asking?

[Furbo]

Originally Posted by shtukaturkasten

P.S. Why Rolex does not indicate the thickness of sapphire in their models ? Please show me where to look.

Why would you possibly need to know that?

[Rashid.bk]

Originally Posted by shtukaturkasten

Many thanks for answers.

Of course, the large crown is more comfortable for daily changing timezone.
But some owners of Sub (triplock as used in GMT) complain on hand callus due to crown rub sore their hand!
Is there someone who has a similar problem with Sub or GMT II?

May be, for GMT will be enough 7mm twinlock especially as waterproof to 300 meters it do not need.

I have never had a problem with the crowns(all triplock) from my Rolexes rubbing and cannot remember this being a complaint at all. Perhaps as stated it may be a bracelet sizing issue for you.
And sure the GMT2c could use a twinlock crown, but it isn't about waterproofing, it's about function and aesthetics.

If it's that much of a factor, why not consider getting a pre-ceramic GMT2, same movement.

[shtukaturkasten]

Originally Posted by Cc1966

Anton, what ship is in your avatar if you don't mind me asking?

It's sailing ship "Sedov", entered in the record books Guinness. I worked on it 10 years ago as a Second Mate.

Originally Posted by Furbo

Why would you possibly need to know that?

Why not, I want to know everything about my watch, including the thickness of sapphire. Before that I owned Panerai 359 and the manufacturer indicates this parameter in watch characteristics on website. I think this option is not unimportant, especially for professional exlorer's watch

[Tools]

Originally Posted by shtukaturkasten

Hi to All.
I have a few questions for the community regarding to the watch crown and waterproof. Rolex produced Triplock (GMT II, Sub) and Twinlock (EXP 2).
At the same time waterproof in GMT II ( triplock ) and EXP 2 ( twinlock ) - 100 meters, Sub has ( triplock ) - 300 meters.

All above mentioned models have body case Oyster.

1. Why GMT II is equiped by triplock with waterproof at 100m instead of twinlock?
2 . Due to anything other than the crown provides more waterproof in Sub compared to GMT?
3 . Triplock looks more massive and it is creates some discomfort owners, then why should it be put in the watch with water resistance to 100m?
P.S. Why Rolex does not indicate the thickness of sapphire in their models ? Please show me where to look.

You are mistaking the Triplock crown as the only means of waterproofing in Rolex Watches when it is just one of several...

The Triplock is also used on the Daytona and Deep Sea Sea Dweller, and SD - it is for marketing, not waterproofing, although it does an excellent job of that too. However, the Twinlock is also good for 300 meters or more as evidenced by it's use on the original subs and on the Explorer used in it's advertising for "The Crushed Oyster".. even at 2,000 feet the Twinlock never failed.

It is the caseback that keeps the movement from being crushed at depth that gives the Sub it's depth rating, not how deep it can go before the seals fail..

[Lion]

Anton, sounds like you had a good time working on that beautiful ship. Where all did you sail to and for how long did you work on that ship? As for the thickness of the Crown if you do not get an answer then pose that question to the Rolex Service Center nearest to where you live. As for other companies stating their watches many other attributes it's usually meant for advertising purposes or for bragging rights...only!!!

[shtukaturkasten]

Originally Posted by Lion

Anton, sounds like you had a good time working on that beautiful ship. Where all did you sail to and for how long did you work on that ship? As for the thickness of the Crown if you do not get an answer then pose that question to the Rolex Service Center nearest to where you live. As for other companies stating their watches many other attributes it's usually meant for advertising purposes or for bragging rights...only!!!

I am sailing in Baltic, North, Mediterranean, Black Sea. I was working on "Sedov" during 5 years as sailor, fourth, third and second mate, taking part in the Regatta "Cutty Sark"

Ok, thanks for yr advise to contact Rolex Service Center, but I hope to find information in internet.

[joe100]

You'll find Rolex publishes very few actual specifications on their products. If you really want to know the crystal thickness, I'm sure some kind soul here has a replacement sapphire and some calipers...

[second time]

If you have the perseverance, you will find everything you have asked on these forums using the search function. Tools/Larry and other experts have provided some great info on numerous threads on this subject, good luck, you'll be amazed at what you can learn here.