Seiko & Citizen Watch Forum Message Archive
That's Why We Need a new WR Standard
The current ISO standards are confusing and inaccurate. When someone sees 200M, he or she naturally thinks depth, not depth variable upon static or dynamic movement.
Watch companies and ISO should come up with better designations for water resistance. Here's one idea:
CD - Commercial Diver = to 500m
PD - Professional Diver = to 200m
RD - Recreational Diver = to 100m
SD - Surface Diver = to 50m
SW - Swimmer = to 25m
Message Thread
- 150m vs 200m on the divers...what caused the increase? - brian - 2003-03-06 13:58:00
- my gist.... - shawn - 2003-03-06 14:01:00
- what 200M means in practical terms >>>> - ponycarp51 - 2003-03-06 14:08:00
- Pony, those are the standards I'm talking about... - shawn - 2003-03-06 14:15:00
- FWIW found this site looks like 1996 is current std. >>>>> - pony - 2003-03-06 16:06:00
- For what it's worth, I read recently that anything deeper than 140m without... - Rob - 2003-03-06 14:31:00
- Isn't it the case...(more) - Alex - 2003-03-06 14:46:00
- That's possible. nt - Rob - 2003-03-06 15:03:00
- totally correct- my 6309 took far more pressure at the surface during... - shawn - 2003-03-06 15:09:00
- You are correct [nt] - Will V. - 2003-03-06 17:58:00
- Once saw an analysis of the effects of dynamic pressure .... - JacobC - 2003-03-06 18:25:00
- That's kinda the point (more) - Alex - 2003-03-06 22:05:00
- The same thing appeared on Ultimate Dive Watch form - John S. - 2003-03-07 04:36:00
- That was me! I'll dig up my calculations or the reference... - B Hannigan - 2003-03-07 06:49:00
- Here 'tis.... - B Hannigan - 2003-03-07 07:09:00
- Great information. Thanks for sharing. nt - Rob - 2003-03-07 10:17:00
- This should lay all fears regarding dynamic pressure to rest, once and for all !! - JacobC - 2003-03-07 18:51:00
- calculations... fwiw - mike p - 2003-07-10 18:30:00
- That's Why We Need a new WR Standard - Kixo - 2003-03-06 23:07:00
- Yeah but... - Alex - 2003-03-07 00:22:00
- Static pressure vs Dynamic pressure>>> - jeff - 2004-11-16 08:42:00