I’ve written about this watch before, picking it as a “grail” even before I bought it. It’s a good example of the “DS” shock proof case from Certina and has good period details. I purchased this at auction (the only bid) with an incorrect modern box and papers.
Yesterday’s affordable Orient diver gives way today to an even better Swiss alternative: The Squale 1545 has heritage, provenance, classic looks, and serious Swiss construction. It’s the real deal, yet costs less than 1/10 as much as a Rolex Submariner.