A
AGarcia
Baneado
Sin verificar
Si que lo lleva, compañero, si que lo lleva...
mygshock.com
Para tí "professional" es la palabra que muestra la certificación, pero no es así. Es "AIR DIVERS" en este caso.
Con lo cual hablamos de un DIVER CERTIFICADO. Que yo sepa, el Longines NO LO ES. No digo que sea mejor ni peor, que conste...
Un saludo!!
No, no ha dicho eso.....por lo contrario....la palabra "professional" la pueden colgar hasta en una falsificación, ó en uno Alpha ó Parnis(con lo mayor respecho por esas marcas), además puede ser un pilot profesional ....
Lo G-Shock no es un diver profesional, tenga "air divers", "profesional", ó lo que seya....
Como dices que un Longines no es un diver certificado?
Lo Hydro es tan certificado cuanto un Rolex Sub ó un Omega Seamaster, no?
Aguanta lo mismo, y en la verdad sus 300m son tan fiables cuanto de los de un Rolex ó Omega(no hablo de sus mecanismos y calidad y las otras cosas esas)
Mirad :
The standards for diving watches are regulated by the ISO 6425 international standard. The watches are tested in static or still water under 125% of the rated (water)pressure, thus a watch with a 200 meter rating will be water resistant if it is stationary and under 250 meters of static water. The testing of the water resistance is fundamentally different from non-dive watches, because every watch has to be fully tested.
ISO 6425 water resistance testing of a diver's watch consists of:
- Immersion of the watch in 30 cm of water for 50 hours.
- Immersion of the watch in water under 125% of the rated pressure with a force of 5 N perpendicular to the crown and pusher buttons (if any) for 10 minutes.
- Immersion of the watch in 30 cm of water at the following temperatures for 5 minutes each, 40°C, 5°C and 40°C again, with the transition between temperatures not to exceed 1 minute. No evidence of water intrusion or condensation is allowed.
- Immersion of the watch in a suitable pressure vessel and subjecting it to 125% of the rated pressure for 2 hours. The pressure must be applied within 1 minute. Subsequently the overpressure shall be reduced to 0.3 bar within 1 minute and maintained at this pressure for 1 hour. No evidence of water intrusion or condensation is allowed.
- For mixed-gas diving the watch has to be immersed in a suitable pressure vessel and subjecting it to 125% of the rated pressure for 15 days in a (helium enriched) breathing gas mix. Subsequently the overpressure shall be reduced to normal pressure within 3 minutes. No evidence of water intrusion, condensation or problems caused by internal overpressure are allowed.
- An optional test originating from the ISO 2281 tests (but not required for obtaining ISO 6425 approval) is exposing the watch to an overpressure of 2 bar, no more than 50 µg/min of air is allowed to get inside the case.