Hands-On With The Striking BA111OD Chapter 4 Tourbillons

Getting a feel for the most affordable series of Swiss-made tourbillon watches out there

BA111OD is still a young brand in a world of watches that is full of historical powerhouses. But ever since its founding in 2019, BA111OD has quickly made a name for itself with some interesting new ideas. There is plenty to check out, from the compelling business model to the integration of connectivity and the affordable prices for the technically capable watches. I took two of the brand’s Chapter 4 Tourbillons for a spin to find out what they are about. The first model was the modern-looking Chapter 4.5 T.V.D. The second was the more classic-looking Chapter 4.7 Onyx Tourbillon. These different watches gave me a good impression of the BA111OD Chapter 4 series. It’s time to find out more!

We first wrote about BA111OD in 2022, and when I read Sky’s article, it seemed like an ambitious brand with a lot of different and intriguing elements. In the end, though, I am mostly interested in the watches. The Chapter 4 series features several tourbillon watches that stand out for multiple reasons. First off, these are probably the most affordable Swiss-made tourbillon watches currently out there. Second, the Chapter 4 series consists of a string of different models that form the heart of the brand. Finally, some of the Chapter 4 models feature a 44mm case, whereas these two more recent models have a smaller 40mm case that we prefer. All in all, there are plenty of reasons to find out more about the BA111OD Chapter 4 series.