Omega Apnea Jacques Mayol on original Steel Bracelet with papers, Omega manuals, and extra links
41.5mm diameter
The Apnea has one of the coolest complications I've seen on an Omega Diver - "beneath the dial is a disc that is half red and half silver which rotates entirely in 14 minutes, and runs off the chronograph. This disc is what gives motion to the 7 windows on the upper half of the dial.
The way it works is from rest all the circles will match the silver dial. Then as each minute passes, a circle will fill entirely in red, until 7 minutes is reached, at which point the dials will begin turning the dial color again over the next 7 minutes. The whole process will repeat once 14 minutes is elapsed."

Dial features applied white gold hour markers with generous amounts of Super-Luminova material in them. The hands are similarly rhodium-plated white gold and have a very unique design, derived from the sword hands of other Seamaster Pro 300M models. Because ordinary sword hands would cover the circular windows on the upper half of the dial, these hands are ultra-thin for the section that crosses those windows, allowing maximum visibility.

CASE:
The Seamaster APNEA case has a number of subtle differences to other Omegas of its era and incorporates a number of key features that enable it to perform the task it was designed for.
The first is the pusher design which is more complex than most people realise. The vast majority of chronographs, and almost all of those produced 20 years ago were designed to meet their water resistance goals only when the pushers are not being operated. This is because the O-ring seals on pushers are deformed and moved when the pushers are depressed, which can potentially allow water to enter the watch. Omega in the early 1990s designed pushers that were not only water resistant to 300 meters, but were fully functional and could be safely pressed all the way down to 300 meters.
This very rare feature of fully depth safe operational pushers is key to the APNEA, as divers will be actively using this feature potentially all the way down to 100 meters and beyond, a rare case where a highly complex feature is genuinely useful for the intended market.
Another thing you may notice on the Seamaster APNEA is the lack of a helium escape valve. This is because APNEA divers are not scuba divers, they don't breathe mixed gases, they don't use diving bells, and they don't need a helium escape valve as a result.
The scalloped uni-directional bezel is slightly different from most Seamaster models in that it has a concentric brushed finish rather than polished, and has red minute markers up to 14 minutes, matching the dial. The case is also unusually brushed rather than polished, likely to reduce glare and maximise legibility of the dial under difficult conditions while diving.
The case is 41.5 mm in diameter, the same as other full sized Seamasters however the Calibre 3601 chronograph movement makes it a bit thicker at 16 mm, although this is also the same thickness as the regular Seamaster Pro 300M Chronograph models.
The case-back is a screw-in design with the Omega wave pattern, but instead of having the traditional Omega Hippocampus logo, it has a unique tribute to Jaques Mayol with both the name engraved as well as the Team Mayol logo of a dolphin and a diver in a circle.

My Apnea is in Excellent/ Near Mint condition and comes with a red Omega Operating Instructions Book, a red Operating Instructions Booklet: Apnea Calibre 3601, white Omega card wallet with the International Warranty Card
The Start/Stop and Reset pushers work perfectly and smoothly.
Bracelet is currently sized for my 7 1/2" wrist, but there are two extra links included.

Price: $2,499, shipping is included in the Conus. Will ship worldwide after discussing shipping services and additional costs with buyer.

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Thanks OF for the space.

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