Diving watches

[Pressurehead]

As usual we are off topic, again.
And I started it this time.

 

[old frogman]

As usual we are off topic, again.
And I started it this time.

Not off topic. It's a transitional discussion. Historically educational, particularly for the younger generation.

I transitioned from analogue dive watch to digital (Casio G-SHOCK) in 1980s. Did not trust those early computers. They were also quite expensive at the time about $2,000+.

At the time, I recall a friend had a digital Seiko watch which had a depth sensor and incorporated the USN dive tables (not the algorithm). It gave decompression scheduled based on maximum depth. Probably a safer alternative to those early computers.

It was not until about mid 2000 that I bought my first dive computer.

 

[OMyMyOHellYes]

The Tudor Pelagos FDX has a bidirectional bezel and the mins timing marks are graduated in a countdown sequence, in 5 mins increments, from 60min to 0min. I believe that it is a multi-function feature which enables the watch to be used for timing dive duration, underwater navigation legs, time delayed explosive detonation, etc.

Designed by Tudor for French Navy. However, at about $6,000 per watch I wonder if the French Navy has purchased any?

A very cool looking watch.

Cool watch indeed, don't consider it a dive watch per se. Their marketing propagaganda says, "The Pelagos FXD is a technical watch that meets a unique set of specifications that was developed for underwater navigation" and with a bi-directional bezel really does not meet the requirements of timing a dive safely.

 

[old frogman]

Cool watch indeed, but that is a pilot's watch w/ GMT, not a dive watch.

Please see the photograph below showing a blue coloured watch. The Marine Nationale Pelagos FDX. Allegedly designed for le Hubert Commando, naugers de combat (combat swimmers) de la Marine Nationale de France.

If you care to explore the catalogue which shows the Pelagos FDX GMT, you will see may other versions of the Pelagos FDX designed for various applications.

 

[old frogman]

Cool watch indeed, don't consider it a dive watch per se. Their marketing propagaganda says, "The Pelagos FXD is a technical watch that meets a unique set of specifications that was developed for underwater navigation" and with a bi-directional bezel really does not meet the requirements of timing a dive safely.

If you want to see a really dangerous watch, try the 1968 Seiko dive watch (mechanical movement). It had a bidirectional bezel with no clicks. My first dive watch and I did many deep dives on it, back then. Won't mention the depth.

 

[Pressurehead]

When I bought this watch last century I thought it was the "the best ever" . Will now be rotated back to my everyday wear, 2 Seikos plus this . OK, don't be the smart arse and say 'all at the same time '.

 

[old frogman]

The Pelagos FDX is meant to be used in conjunction with a closed-circuit oxygen rebreather. The bezel configuration is used as a countdown timer for estimating distance underwater e.g. 100 yards per minute. The overall dive duration is based on the oxygen exposure clock which for the combat swimmer may be measured in hours.

 

[happy-diver]

Dudes quick

Tudor Pelagos

 

[ROUS]

My Vostoks' bezels are bi-directional also.

 

[noidea]

Didn't even know these existed