thanks for reviving this topic as we're trying to find out when Omega used a " Gemini IV spacewalk " themed advertissement for the very first time 馃槙 1966... 1967 ?
...
Thought I'd contribute to this thread with this ad that I found on a Facebook post this morning. Check out the prices (I'm guessing from the mid 1950s). US$223 for a Rolex GMT Master? Even with inflation that's an absolute steal in today's money. If only I had a time machine. Sigh...