Check this out!

[HusH]

Possibly a watch your spouse/partner would want you to buy?



Seriously, this is actually being sold online 

Along with the basic black muff, it comes in orange, yellow, pink and green too! 

[sshark]

sorry i am missing the point. wat abt it in relation to ur topic title??

[takashi78]

I think only the Brits will understand it hehe

[rusminag]

Hush, what is so special about this watch?

[G.MAC]

a muffdiver is a person who gives oral sex to the female reproductive organ

[rusminag]

 :Confused:Then, it should not be discuss under Jokes section.

[sshark]

Diver watch with only 10ATM water resistant??? Because its a muff diver, not a serious diver watch

you got a point. Thanks But then here is something funny, seriously... i know the oxymoron... a serious seiko watch Seiko Flightmaster has a WR of 100m with a diver extension and unidirection turning bezel.... specs I offload from another site

hmmm....

    Specification is shown below:
    Seiko PROSPEX SBDS001 Flight Master Mechanical Watch
    -Automatic Movement
    -Caliber : 6S37
    -40 Jewels
    -Max Running Time : 50 hours
    -Bright Titanium & Band (Hard Coating)
    -Dual Carved Sapphire Glass : Non-Reflective Coating
    -Non-reflective coating on sapphire glass : Thick non-reflective coating on the sapphire glass which a crack or scratch cannot be easily attached, and the visibility is improved while controlling reflection
    WR 10 Bar Water Resistant (100 meter)
    -Backspin prevention bezel

[terrenceterrence]

hey a serious muff diver needs the proper equipment and accessories for some serious muff diving activities... 

[HusH]

hey a serious muff diver needs the proper equipment and accessories for some serious muff diving activities...

Over engineered then don't you think @10atm. Would one really go that deep? 

[sshark]

The 10atm refers to static pressure i.e. you just stand still @ 100m beneath the water. If you move ur hands then the pressure is higher e.g static pressure + "movement" pressure.

[acurusaragon]

Will this be a one smelly "muff" watch?   

[siodee]

The 10atm refers to static pressure i.e. you just stand still @ 100m beneath the water. If you move ur hands then the pressure is higher e.g static pressure + "movement" pressure.

I never heard of such physic law, where you get this?

hey a serious muff diver needs the proper equipment and accessories for some serious muff diving activities...

Over engineered then don't you think @10atm. Would one really go that deep? 

Hush, what is so special about this watch, beside 10atm

[TheHobbit]

The 10atm refers to static pressure i.e. you just stand still @ 100m beneath the water. If you move ur hands then the pressure is higher e.g static pressure + "movement" pressure.

I never heard of such physic law, where you get this?

That is correct. Watches are rated water resistance at static pressure of the said depth, i.e. if the watch is rated to 100M, it is water resistant at 100M static. If you decide to swim at 100M the pressure acting on the watch would be more than the pressure at 100M static. So the watch may allow water to go into the watch. However most watch company do test the watch to 25% + rated depth. So typically a watch rated to 100M would be tested to a depth of 125M (static pressure).

[siodee]

The 10atm refers to static pressure i.e. you just stand still @ 100m beneath the water. If you move ur hands then the pressure is higher e.g static pressure + "movement" pressure.

I never heard of such physic law, where you get this?

That is correct. Watches are rated water resistance at static pressure of the said depth, i.e. if the watch is rated to 100M, it is water resistant at 100M static. If you decide to swim at 100M the pressure acting on the watch would be more than the pressure at 100M static. So the watch may allow water to go into the watch. However most watch company do test the watch to 25% + rated depth. So typically a watch rated to 100M would be tested to a depth of 125M (static pressure).

Well, only half truth, water pressure measurement depend on the water mass, temperature and duration, the result will be different if static + long duration as compare to static + short duration, same go with movement or not, sea water or swimming pool. A lot of factors

[genec]

Don't think duration is a determining factor in quantifying pressure. Since Pressure = Force/Surface Area.

[sshark]

Well, only half truth, water pressure measurement depend on the water mass, temperature and duration, the result will be different if static + long duration as compare to static + short duration, same go with movement or not, sea water or swimming pool. A lot of factors

Yes, temperature will increase water pressure since higher temperature higher water molecules movement. However, this is negligible becoz most ppl dive in a water of temperature between 20~25C or slightly higher. Definitely not in the region of 40C and above. I doubt duration has effect on the water pressure as @genec has mentioned. The salt water or chlorine will cause rubber to deteriorate if the watch in contact these substance frequently and in a prolonged duration.  mass difference is not a lot i.e. 1025 kg/m3 (seawater) vs 1000 kg/m3.  So the whole truth, with other negligible factors i mentioned, the WR has to cover are static and dynamic pressures. Not that many factors, dua saja

[TheHobbit]

For your reading pleasure on the topic of water resistance:

http://en.wikipedia.org/wiki/Water_Resistant_mark

Most places, after servicing watches do one of the following to test your watch for water resistance (if done at all):

Dry Test - The watch is placed in a chamber and the air-pressure is increased. The machine will detect the smallest variation in the case size. If the case expands, even slightly, then the watch is not water resistant.

Wet Test - the watch is placed in a chamber which is half filled with water and half air. Air pressure is increased while the watch is out of the water, then the watch is slowly immersed into the water. Once the watch is completely immersed, the air pressure is slowly released. If bubbles come out of the watch it means that air seeped into the watch prior to immersion & the watch is not water resistant. This method is generally used as a second test to pin-point the problem area.

[Sid Vicious]

Just wondering. If this is so. When we buy pre loved and ask the shop keeper to open the back bit so we can see the movement does that make the watch not water resistant afterwards?

[TheHobbit]

Just wondering. If this is so. When we buy pre loved and ask the shop keeper to open the back bit so we can see the movement does that make the watch not water resistant afterwards?

This question is opens all sorts of discussion. Well technically yes, the water resistance rating may have been compromised. However, if the watch guy is good, he will check that the seal is not dry and if it is, he will lubricate it. In most cases this is not done. But is saying that, how many of us actually take the watch to its rated depth, even pre-loved watches?

As for me, I will send my watches (bought pre-loved) to my watch guy to have it tested. He will normally test it for water resistance, check the timing and open the case back to inspect the movement (for dry oil, etc). If it fails, I will send it off to get it serviced. But if the watch is old (perhaps more then 10 years) and I have no service record, I will send it in for a service. Most of the time back to the service center. My watch guy is pretty cool with me not sending it in to him.

[gapper]

back to the track.. i think what Hush meant was the brand of the watch... it is called MUFF DIVER.
do you guys know what it really means?  no fuss on the WR at all.

muff diving is an action you giving to a girl... = eat out her hairly pusssssssssss-c!

[sshark]

i sure learning new meaning to words in this forum and not just about watches and queen's english

back to the track.. i think what Hush meant was the brand of the watch... it is called MUFF DIVER.
do you guys know what it really means?  no fuss on the WR at all.

muff diving is an action you giving to a girl... = eat out her hairly pusssssssssss-c!

[siodee]

Well, only half truth, water pressure measurement depend on the water mass, temperature and duration, the result will be different if static + long duration as compare to static + short duration, same go with movement or not, sea water or swimming pool. A lot of factors

Yes, temperature will increase water pressure since higher temperature higher water molecules movement. However, this is negligible becoz most ppl dive in a water of temperature between 20~25C or slightly higher. Definitely not in the region of 40C and above. I doubt duration has effect on the water pressure as @genec has mentioned. The salt water or chlorine will cause rubber to deteriorate if the watch in contact these substance frequently and in a prolonged duration.  mass difference is not a lot i.e. 1025 kg/m3 (seawater) vs 1000 kg/m3.  So the whole truth, with other negligible factors i mentioned, the WR has to cover are static and dynamic pressures. Not that many factors, dua saja

Sorry just side track, I agree with you if water pressure measure in close environment, then your comments is truth, but all of living in different environment, just assume if one at "dead sea" with static and movement, the water pressure measurement will be different from one at south china sea with static and movement, or even any other water, cause environment is different, that is why I said it is half-truth, unless someone can prove me wrong..

Just my ten cents

[TheHobbit]

Siodee,

I agree with you on what you say on the water pressure.

Anyway, other methods used to check water resistance of a watch, courtesy of James Dowling.

'There are essentially 2 methods of testing the impermeabilty of a watch case with the movement inside; the Rolex method and the Portescap method.

The Rolex one uses water but still can not damage the movement here is how it works. The machine incoporates a glass tube one third filled with water which has a screwed top with a pressure guage and the bottom end sits on a vacuum pump. The watch is suspended from a hangar at the top of the tube and the air above the water is then sucked out. As the pressure inside the watch (normal air pressure) is now higher than that in the tube it will attempt to escape and equalise the pressure (nature abhors a vacuum and all that) if it does succeed in escaping from the case it will be seen as bubbles rising from the case. Simple really!!

The Portescap system places the watch on a platform inside a vacuum chamber. The chamber is then evacuated of all air and a pointer is lowered until it touches the glass of the watch; the air in the watch is now at a higher pressure than that in the chamber (air pressue vs vacuum) and it will once again try to escape if it does so the case will suddenly contract as the pressure equalise and this will be registered on a micrometer guage connected to the pointer touching the glass.

Both methods are what is known as non-invasive and/or fail safe; in other words it is impossible for the watch to be harmed by the testing methods.'

[sshark]

I have said what I set to say and you choose to argue negligible factors without any objectivity in sight. There is no viable or economical way to cover all these negligible factors. So the easy way out is to guesstimate these values and slap in, say, 20% safety factor like in the construction industry.

I will stop here as it doesn't worth going in depth with this.

Cheers... 

Well, only half truth, water pressure measurement depend on the water mass, temperature and duration, the result will be different if static + long duration as compare to static + short duration, same go with movement or not, sea water or swimming pool. A lot of factors

Yes, temperature will increase water pressure since higher temperature higher water molecules movement. However, this is negligible becoz most ppl dive in a water of temperature between 20~25C or slightly higher. Definitely not in the region of 40C and above. I doubt duration has effect on the water pressure as @genec has mentioned. The salt water or chlorine will cause rubber to deteriorate if the watch in contact these substance frequently and in a prolonged duration.  mass difference is not a lot i.e. 1025 kg/m3 (seawater) vs 1000 kg/m3.  So the whole truth, with other negligible factors i mentioned, the WR has to cover are static and dynamic pressures. Not that many factors, dua saja

Sorry just side track, I agree with you if water pressure measure in close environment, then your comments is truth, but all of living in different environment, just assume if one at "dead sea" with static and movement, the water pressure measurement will be different from one at south china sea with static and movement, or even any other water, cause environment is different, that is why I said it is half-truth, unless someone can prove me wrong..

Just my ten cents

[siodee]

Bro Sshark, please forgive my ignorant, next time Teh Tarik is on me 

P/S : Teh tarik at Mamak la, not those slaughter shop