I saw this at Watches and Wonders - where they had the best exhibition by far - and tried it on along with their other perpetuals. I was left wondering why they didn’t match it with their obsidian dial (which stole most of the attention from everyone I saw there) which has a beautiful dial, great presence and would have made the cutout a more subtle feature.
At 44.4mm diameter it’s too much for my 17.2cm wrist but I was way more tempted than I’d ever thought I’d be 😉