Uploaded August 2026 | Updated September 2026, 2 weeks ago

---

A sharp question from Chris - and one with an even smarter answer.

In this episode of IWC Replies, IWC watchmaker Sabrina Herzog explains why repeating a single number gives watchmakers nearly 100 years to swap the century slider, without interrupting the Perpetual Calendar's accuracy.

Sometimes, great engineering is all about thinking centuries ahead.

#IWCwatches
#IWCschaffhausen
#Watches
#IWC
#IWCreplies