For sale I have one of my 2 Spillman cased Zenith’s holding an Ephrem Jobin Cal 133.8 in stainless steel. All original but I do believe the crown is replaced as it doesn’t recess as I believe it should and it is unmarked. A nice thread on these can be seen here, https://omegaforums.net/threads/another-remarkable-spillmann-the-hidden-crown-case.81244/ Keeping excellent time but no service history. By the serial number I would date this to 1957-58. Asking $875 US with free shipping Stateside. https://photos.app.goo.gl/QDh91HXjvktxKRGW6