Bucherer Automatic Chronograph
most likely a 2892 with a Dubuis-Depraz chronograph module

How to spot a modular chronograph!
In this picture it is even more obvious that the chronograph module sits on top of the most likely 2892 movement. At the time this watch was made, ETA used normally Dubuis-Depraz chronograph modules. In ca. 2000, ETA started to produce it's own modular chronograph, the 2894 which consists of a 2892 base caliber with ETA's own chronograph module.

What is the difference between a modular and a "real" chronograph?
Watch collectors often insist to buy real chronographs. A movement that was designed with the chronograph feature in mind. Modular chronographs are also nicknamed "piggy back" chronographs because of their design.
While purists prefer the real chronographs (the most affordable Swiss version is the ETA 7750), the modular design often allows for lower priced models. This Daniel JeanRichard sold for ca. USD 500 only with the 2894 modular chronograph movement from ETA. And the Bucherer chronograph in the picture was about the same (historic USD CHF exchange rates considered)