Independents

Here are two photos I found on the net, One official: This one to be credited to Watchley Dot Com. Super dial and case, and I never saw a chrono like that. I think our dear Brandon can explain us how it works, it is quite fascinating. Best, Nicolas Displa...  

The movement It's a very nice watch and still in my collection. ...  

I have too many pictures of watches to take

An explanation of the how the chronograph works: Richard’s patented COS mechanism does away with pushers and lets the user control the chronograph entirely through the crown. When the crown is up against the case, turning the crown counter clockwise will ... 

I might be a teensy bit partial here. This is the COS “ZM” variant, which counts minutes on the central axis. With this in mind, the Massena piece is certainly my favorite version with subdials. ...  

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The lack of pushers creates a cleaner look that I like

My only issue, 42mm case. Lots of like in Habring. I will buy another at some point.

Not a bad watch, but nothing revolutionary- it works like a monopusher. As everyone knows PP had already that kind of "complication" in the 1940's. It would be a bit more of a feat if the chronograph had a chronograph hour counter that also would have to ... 

... since with a monopusher you cannot add time measurements. After stopping, always a rest will follow. With the COS, you always can add the measurements by restarting the chrono without resetting it. Marcus