Originally Posted by Sander
Just asking here because it doesn't warrant its own thread and people here should know it: what is the eason for the red part of a pepsi/coke bezel on a diver's watch? I would guess that it serves as a warning for the diver that his oxygen is running low, but maybe there's an entirely different reason for it?
The pepsi bezel is most famous on the Rolex GMT. In that sense, there is no inherent purpose because the GMT function on that watch has nothing to do with the bezel.
Now if youre talking about the Rolex Submariner, the issue is not the color but the unidirectionality of the bezel that, as you say, serves as a time warning that oxygen is running low. "Unidirectional" is whats key here as it will never rotate the wrong way and tell you you have more time when in fact you don't.
Rolex cast a long shadow on subsequent dive watches (or watches in general especially in reference to the signature look of their bezels). The Seiko SKX401K for instance clearly fused the two. I don't think it has anything to do with a technically superior justification, just deference/homage/tactic to the style popularized by Rolex. Color, in general, would not be a good means to communicate such critical information because it gets dark in deep water. That's probably why other companies introduced a vibrating alarm (JLC Polaris for instance which IMHO is THE dive watch to get).
Nowadays of course sensible people would most likely rock a sturdy quartz for such things...and on a slightly related note that Rolex Deepsea Challenge looks like a giant facepalm to me
Edited by Cylon - 3/21/12 at 10:35am