Jump to content
When you buy through links on our site, we may earn an affiliate commission.

Toadtorrent

Member
  • Posts

    5,230
  • Joined

  • Last visited

  • Days Won

    3

Posts posted by Toadtorrent

  1. Awesome stuff. Would you by any chance have Before/After shots of the case details before they got modded. I'm assuming it was a crown guard shaping as that's what's pic'd in the detail shot, but the picture on the grinding wheel looks like it's lug horns that are being shaped.

    It looks great. I'm not sure if I would want the 1675 or the one before.

  2. Also on the same topic, my Noobmariner, WM9 v3, Omega PO, Josh's 1665 vintage all passed 5 atm. The one that I was the most confident in is the only one that failed.

    Edit: And yes 75 lbs = roughly 5 Atm. That's what I was using.

    Excellent to hear. This was what I was hoping for. Good stuff. I was very pleased my El-Cheapo-Priced-But-Completely-Awesome-UN-Marine-Diver passed...as that watch is so designed for the pool.

  3. I just chuck mine in a bucket of boiling water and watch for bubbles.

    Unfortunately every single one of them has tons of bubbles. I don't get it. :g:

    Hah...I had to think about this one. I tried that throwing it in the tub when the kids are in for their baths...but there are often bubbles there too...followed by cries of "stinky" and lots of laughing. :g:

    You need to take into account that the majority of the gages you will run into read "gage pressure" which accounts for the 1 atm and start at zero.

    Aaah...got it. Good point.

    Here's a general formula.

    Pressure = (depth X 15)/33

    So...if gauge pressure (starting at zero) reads about 75 psi:

    75 psi = (depth * 15)/33

    Solving for depth yields: 165' or 50 m or 5 atm.

    So this should be good for light swimming but not snorkelling or diving or deeper water swimming.

    My brain hurts. I have a tendency to waaay over complicate things...you should have seen my Halloween pumpkins...no triangle eyes there.

    :clap3::drinks::clap3:

  4. Ray on 250, 199 and 092......... These straps are very high quality, the texture is amazing

    Do you have a link to Ray for his straps? That black croc is stunning. The Kain Heritage straps are new to me...but beautiful. The website has some nice stuff.

    Thanks for these. A really good selection and representation of strap looks and some great photography.

  5. You should start from 0 psi. Since you'll almost always start your "dive" at sea level. The 75psi you're measuring inside the bottle is actually 75 additional psi so it should be measured as indicated by the dial.

    The issue is that at "sea level", atmospheric pressure is about 15psi...which is why you start at 1atm rather than 0psi.

    So, I think my previous thinking was off. That, when the pressure gauge reads ~75psi, that is 75psi added, which is adding 5 atm (5 x 15 psi) which is a total of 5 atm + 1 atm of pressure on the watch as we start at 1 atm or 15 psi.

  6. Thanks JKay...I had the information from previous searches "in theory"...was wondering what people thought "in combat". Like you, 5 atm is what the total pressure in the system seemed to be that I created:

    • (15 psi + 60 psi = ~75 psi) = (1 atm + 4 atm = 5 atm)

    ...also wanted to make sure I interpreted this right...as that seems so high a required rating for a little more than a 50m dash in the rain!

  7. Hi Folks,

    OK...I'm a Noob when it comes to Home Brew pressure testing for water resistance of watches.

    I made myself a Home Brew Pressure Tester as found in the link.

    When pumping things up, I had a hard time getting the lid tight enough to pump past about 75 psi. I used a Nalgene branded bottle.

    I tried to follow the instructions as found in Water Resistance Testing.

    At 75psi the following reps seemed to pass fine:

    • Ulysse Nardin 45mm Marine Diver
    • Cheapo Omega SMP
    • Rolex Milgauss


      I tested my Breitling Skyland, and there seemed to be small slow bubbles forming around the chrono pushers but no fast leaks...so this seems to me that it would likely be fine washing dishes and some splashes, but probably not the best for prolonged swimming...definitely not for diving.

      Does this sound right?

      The Milgauss was funny...tested fine...no problems...but a couple minutes later, condensation formed inside, and a couple more minutes later, condensation was gone.

      Rats. Something is not right. But, what does this mean??

      I opened up the caseback and stuck it in a baggie with silica gel to dry things out...I'll test again later...but who knows.

      Any suggestions?

      At 75psi, do you think this would be fine for swimming? This seems to my understanding, that 75 psi =

      • 15 psi for atmosphere
      • 45 psi added
      • = 50 m / ~165 feet water resistance or hopefully fine in a swimming pool but not diving

      Is this right??? Thanks for any help.

×
×
  • Create New...
Please Sign In or Sign Up