Large space-age Norman shield shaped asymmetrical case, a large size patented Compressor case, with a high-grade automatic movement! Super rare and gorgeous, Swiss Made asymmetrical vintage watch by Delma. The case is made by a famous EPSA company. Developed and then patented in 1956 by watch case manufacturer Ervin Piquerez S.A. (hence the name: EPSA), the “Super-Compressor” design takes advantage of the water pressure the case is exposed to at depth to press the case back against the o-ring seal. More depth equals more water pressure equals greater seal, Compressor watches typically have a depth rating of 600+ ft.
Every type of EPSA case has its patent number, this one is 344.201 – extremely rarely seen, it was made for few Swiss brands (incl. Festina), rare find for ‘compressors’ and unusual shapes collection.
Key features
Patented stainless steel Compressor type case made by EPSA E.Piquerez, unusual ‘Shield’ shape
Space-age asymmetrical profile with ‘wings’ (see side photos)
Remarkably large size 36×37.7mm (w/o crown), 20mm lugs width
Case finishing updated in our workshop (polishing / brushing combo)
Date stamp inside the caseback ‘9-74’ for September 1974 (final watch assembly could be done few weeks/months later)
Silver dial with a deep-blue frame, applied indices
Vertical Day-Date window at ‘6’
Swiss-standard automatic ETA 2836 movement, successfully used until nowadays
High quality 20mm genuine leather strap (water resistant type)
Please mind all vintage watches are not suitable for real diving
