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BlackTalon
路路This Space for RentAll of you must be fun at parties.
Speedmaster 60th waterproofness
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STANDY
路路schizophrenic pizza orderer and watch collectorAll of you must be fun at parties.
Is it a party, function or a gathering you are mentioning as there is ......... 馃槤 馃槈
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Mouse_at_Large
路I think the first post on this old WUS thread, especially the section on Dynamic Pressure should put the myth to rest.
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ChrisN
路
I'm surprised that everyone takes that old thread as gospel as there is no actual justification there for the dynamic pressure: "Without repeating all the calculations here (they involve denominators and the greek alphabet and are PITA to type out), at a depth of 330ft(100 m) and moving your arm at 3 ft/sec, the dynamic pressure is in the order of magnitude of 0.14 feet of head or 0.04% of the depth. Even assuming you could move your arm at 20 ft/sec (14 mph!) the dynamic pressure is only about 6.2 feet of additional depth (<2%)."
Just in case anyone is interested in how he got that, it's very simple:
Dynamic pressure = 0.5 *fluid density*flow velocity
This is strictly applicable to incompressible fluids and water is essentially that. Pressure in pascals, density in Kg/m3 and velocity in m/s.
So, the old thread first example at 3ft/sec (0.914 m/s) and with water density of 1000 Kg/m3, gives dynamic pressure = 418 Pa = 0.00418 Bar.
Although we often simplify it to 1 bar for 10m, water pressure increases 0.981 bar for every 10m you go down (this is actually stagnation pressure and not static as I said above but static sort of goes with dynamic in most people's minds), so this represents an additional 42.6 mm of depth or 0.14 ft as is quoted above.
If you repeat with his second example at 20 ft/sec, you get 6.21 feet, again as he says.
Best advice is to follow what the manufacturers say and get the water resistance checked regularly if you're going in the water with any watch of value.
Regards, Chris
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stevec14
路I was not waiting such a discussion to take place. That's great, a lot of information! To give you more details, the watch had been dropped at Omega Gen猫ve this morning (no way to drop it before). They said It would be covered by the warranty (d茅faut 茅tanch茅it茅) and will take up to two weeks to get it back.
My daughter is only two and it was her first "real" time at the swimming pool so I just went for half an hour in the water (50cm deep), the chronograph was not activated under water or during this swimming pool episode. Obviously I cannot exclude that accidentally the reset pusher was pushed. That's comical cause it's my first new watch (only own vintages) and it's the first time I put a watch in water, there won't be another one I promise.
Btw thanks guys for all your comments, advices!
Good news. Let鈥檚 hope it鈥檚 not too long before it is back on your wrist where it belongs!
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Buck2466
路That being said maybe the highest cliff divers would make the watch leak water as they jump from over 190 feet and hit the water in around 3.5 seconds.but any faster than that we would no longer be concerned with the state of our watch but the state of our skeleton, lol
From that height, I would be more worried about spring bar failure from the force of impact and coming back out of the water with no watch at all, as my watch gently sinks to the bottom of the sea. Actually witnessed that happen to a friend years ago from about a 50 foot cliff jump with his watch on. When he came up, the watch was gone and yes alcohol was involved.馃榾
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Archer
路路Omega Qualified WatchmakerEncore une fois 馃榾) fait comme tu veux mais moi comme beaucoup de personnes font sur ce forum et ailleurs ils ne le font pas, il ne faut pas croire tous les 茅cris Apres fait ce qu'il a un pas de soucis 馃榾)
If people choose to swim with the watch on or not is a personal decision. But clear manufacturing defects like this incident aside, it's clear the watch is capable of water exposure that includes swimming. I personally don't swim with a Speedmaster and probably would not (because I wear mine on a leather strap) but I do know it's capable of it.
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Canuck
路Last year, I was prepping my Speedmaster for some photography, by giving it a quick cleaning with a moist nail brush, and quick rinse in warm water. Fortunately, I was only a few steps from my shop, because the watch leaked! Not a lot, but moisture under the crystal. After servicing and replacing the crown, pushers, gasket, and crystal, I am guilty of assuming the result was a water resistant Speedmaster. But I haven鈥檛 checked it in my tester.
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Theognosis
路From that height, I would be more worried about spring bar failure from the force of impact and coming back out of the water with no watch at all, as my watch gently sinks to the bottom of the sea. Actually witnessed that happen to a friend years ago from about a 50 foot cliff jump with his watch on. When he came up, the watch was gone and yes alcohol was involved.馃榾
Spring bar failure at sea is my main concern as well. I was wearing my PO one time and had to cover the watch with my hand as I jumped from 30 feet. I could imagine any divewatch falling deep into the ocean floor so from then on the Seiko SKX became my watch of choice when going to the beach. It鈥檚 relatively inexpensive in case something happens and the springbars on that thing are really thick.
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makaria indica
路Spring bar failure at sea is my main concern as well. I was wearing my PO one time and had to cover the watch with my hand as I jumped from 30 feet. I could imagine any divewatch falling deep into the ocean floor so from then on the Seiko SKX became my watch of choice when going to the beach. It鈥檚 relatively inexpensive in case something happens and the springbars on that thing are really thick.
I was in Santorini in September last year, there is a popular rock which has a jumping platform about 7m above the water, I was free diving down to a guy with a scuba tank on who was looking for tourists watches torn off when jumping. I swam out to his boat when he had completed his dive, and had a chat. Seems a few of the locals regularly look for and find watches.... Including the Rolex he was wearing.
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abrahamovic
路Last year, I was prepping my Speedmaster for some photography, by giving it a quick cleaning with a moist nail brush, and quick rinse in warm water. Fortunately, I was only a few steps from my shop, because the watch leaked! Not a lot, but moisture under the crystal. After servicing and replacing the crown, pushers, gasket, and crystal, I am guilty of assuming the result was a water resistant Speedmaster. But I haven鈥檛 checked it in my tester.
Reading this, please, how you all actually clean your 60th Speedmasters?
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padders
路路Oooo subtitles!Karcher jet washer.
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abrahamovic
路Karcher jet washer.
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mappleluna
路So I was just curious to see if people who have new Speedmaster do take random shower with it, go to swim or do some regular gentle job
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eugeneandresson
路Reading this, please, how you all actually clean your 60th Speedmasters?
Too new to clean! But if you must : nothing abrasive. Moist chamois that has never touch the dusty ground or a dusty surface...
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