1960's Ulysse Nardin Vintage Mens Large 37mm Automatic Calatrava Watch, Stainless Steel 10K Gold Filled Omega experimented a bit with

Omega experimented a bit with putting PVD coating on some of their Seamaster Calypso watches

It has no aging hidden inside the engine bay as is common with these - it is very clean

And the crystal has been upgraded to a sapphire one like a new Rolex

the Deep Sea

In terms of its "motor"

1960's Ulysse Nardin Vintage Mens Large 37mm Automatic Calatrava Watch, Stainless Steel 10K Gold Filled Omega experimented a bit withToday's offering showcases this handsome and uncommon large mens automatic Ulysse Nardin gold medallion watch. It has a very classic waterproof style calatrava case and Tiffany & Co. robin's egg blue dial. Measuring 37mm in diameter by 45mm long, it is slightly larger than a Rolex Datejust. We've fallen in love with its style and full size. It is a gold medallion model with its 18K medallion fitted into the back. Its 28 jewel UN movement has a semi