Marine Nationale

Marine Nationale 1990s Auricoste Spirotechnique Deep Dive (Ref. 906.21.05)

Auricoste is a French watch company that produced watches for the French military and Navy, and for civilian use as well. This means a large majority of Auricoste watches are military issued.

La Spirotechnique is a French company founded by Jacques Cousteau and Emille Gagnan in 1947 to distribute the Aqua-Lung regulator developed by Jacques Cousteau. The main focus of Spirotechnique was creating and supplying high-end diving equipment to professional divers. Spirotechnique also supplied diving equipment, which included watches, to the French Navy and Army. La Spirotechnique's American branch opened as the U.S. Divers Company, which later changed its name to Aqua Lung America.

1990s Auricoste Spirotechnique Deep Dive (Ref. 906.21.05)

Spirotechnique worked in collaboration with a couple of different watch companies throughout their history including, Doxa, Squale, TAG Heuer, and Auricoste. The Auricoste Spirotechnique came to be by licensing the case design of the Deep Dive from TAG Heuer. Interestingly though, Tag Heuer didn't actually manufacture the Deep Dive case, the case was actually manufactured by Zodiac watches. 

The Auricoste Spirotechnique to this day remains a very special and very cool watch that has deep ties in the horological world. Relating back to Jacques Cousteau, TAG Heuer, Zodiac watches, and the French military.

This specific example shows not only the reference n the caseback but the MN inventory reference. Additionally, the watch retains its original issued black single pass nato strap adding to the character and vibe of the watch!

Brand Auricoste
Style Diver
Model 906.21.05
Serial 95.XXX
Size Men's
Material SS
Dial Matte Black "Spirotechnique"
Millimeters 41
Bracelet Black Single-Pass Nylon Strap


The excellent case shows light honest wear and retains its large chamfers, but may have been lightly polished in the past. The bezel shows limited wear and remains deep black in coloration and retains its tritium pearl at 12 o'clock position on the bezel. The watch retains its original unsigned crown and the mineral glass crystal which shows some light use. The watch comes on its original nylon single-pass watch strap. The case back shows Marine Nationale serial number 95.XXX as well as teh reference number. 


The matte black "Spirotechnique" dial is in flawless condition. The tritium lume plots have aged to a wonderful Ivory coloration and exhibit no degradation under U.V. light inspection. The original tritium hands match the dial perfectly and show no lume loss or degradation under U.V. Iight inspection.


The watch comes with its original single pass watch strap. The watch is functioning and keeping time perfectly, previous service history is unknown.