They’ve had a jump hour for some time, so changing it up to strike a gong instead of jumping an hour disc is good thinking - the mechanics of it aren’t too different.Thanks for the clarification. I remember when this came out and it seemed like a really interesting complication for CW to focus on given they are still relatively new to the industry. I now understand the phrase "Sonnerie au passage" that @Chris Martin pointed out to me.
Not particularly useful at all, but I’m enjoying it.