Thank you for your hypothese Not sure if it's the case. Minergie was developed (according to the site) in 1998. And here on the case back is helvetia hallmark, which was in use up to 01.08.1995 WBR Serge
I've never seen such a mark on the caseback before. What does this Givenchy like mark mean? The others inducate that the case was made by Centror something between 1982-1995 This is AP 14760BC
With only one exception - I purchased 1815 HG at boutique, and I’m in the waiting lists… but another person came there and bought an Complication and then got in a month Odysseus as well 🤷🏻♂️ and I’m still waiting for it. It seems to be strange with my collection (L1, Dato and some 1815 LE’s). Even
It means, red gold (check the same page mentioned by CR, but change language to Deutsch) Why it is just pink gold for English version - no idea )) WBR Serge
Indeed the same case (it would be great to find pic of case back for both references to check the producer). Do you have it occasionally? )) Different ebauchee, I agree. Probably also pulsometer vs tachimeter scale? Only 6 pcs vs 3 pcs? Without photos and records to much space for interpretation...