1960’s LA MARTINE By Ardath Reef-Diver Submarine 666ft Diver Watch ETA Cal. 2452 With Date


1 in stock

A wonderful example of a rare LA MARTINE (Cesare Zanardi) ‘Reef-Diver’ 666ft cushion-case diver watch by ARDATH, that has been professionally inspected by Localtime.

The case has not been polished (it was originally a polished steel case already), houses an automatic ETA Cal. 2452 with date at 3h and measures in at 41mm or 42.50mm including the screw-down crown at 3h. The silver dial, bi-directional bezel, domed plexi, applied indices and hands are stunning. It is wearing a lovely same-period BOR bracelet that, in my humble opinion, compliments the watch quite nicely. These were made by ARDATH so you will also find them under the Ardath name, but the La Martine models are much rarer as fewer were made. I have included many photos, including some closeup snapshots I took just for fun and some from the service bench, to allow you to enjoy the lovely details of this fine timepiece.

As with all the watches we handle inhouse, the listed buy-it-now price includes a 3-month written warranty from the time of purchase. Do not hesitate to contact us for any further information you might need.

Extra: Try my Localtime Tropical FKM straps which you can see in the last photo here and purchase separately from the store, under Accessories & Straps.

Important Note: Sometimes I am asked what I exactly mean with ‘professionally inspected by Localtime’. Here is my theory on vintage watches: as a purveyor of vintage watches, my effort is to always do only what is needed to the watch. I do not buy ‘junk’ watches to resell. I am choosy with my purchases and always sell watches that are, to my knowledge, authentic and in good condition. I first inspect the watch, both visually (cosmetically) and then mechanically. If I judge that the watch is not yet in need of a full service then I do not put the watch through a service which, by the way, entails a lot of risks too. Instead, I give it what I call my ‘Spa’ treatment which will include a cleaning, changing of gaskets, oiling, lubricating and mechanical testing. If the plexi is heavily scratched or discoloured and it can not be cleaned, I change it. If the crown is wrong or worn, I also change it. Now, if the watch is in need of a full service, then my ‘professionally inspected’ description becomes ‘professionally serviced’. In both cases, I mention what has been changed (if anything) on the watch and I include a written warranty with my listed price.

Important Note On Straps/Bracelets: The straps I use on my watches (leather, canvas, suede, rubber) are always brand new, unless otherwise mentioned and, in most cases, I also sell them separately in my store, in different colours and sizes. In the case of metal bracelets, if the watch is NOS, the bracelet is also unused. If the watch is pre-owned with its original bracelet, then the bracelet is also pre-owned, unless otherwise mentioned. Either way, if in doubt, please ask.


LA MARTINE Swiss (Cesare Zanardi)

Production Period





Time, Date, Elapsed Time Bezel




ETA Cal. 2452

Case Material

Stainless Steel

Case Back

Stainless Steel

Case Size

41mm case, 42.50mm including crown at 3h

Lug Width



Pre-Owned & Working With Warranty

Last Known Service

Inspected by Localtime – August 2020


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