The compelling movement inside of the Jaeger-LeCoultre Duomètre à Chronographe watch is the Jaeger-LeCoultre in-house made caliber 380A manually wound movement that is made up of 445 pieces. Once again, it has a power reserve of 50 hours and operates at 3Hz (21,600 bph). The combination of many materials and colors added by the many rubies and blued steel screws enhance what is already a beautiful mechanism.

On the wrist, the Jaeger-LeCoultre Duomètre à Chronographe is 42mm wide, which I think is a fantastic size for a dressy watch with so much visual technical appeal. Those looking for smaller Duometre watches should know that some versions come in a 40mm wide case. While not a sport watch, the Jaeger-LeCoultre Duomètre à Chronographe does have 50 meters of water resistance, which means you can at least be caught in the rain with it.

As of writing, there are about four different versions of the Jaeger-LeCoultre Duomètre à Chronographe watch available. Each has a 42mm wide case, but with different case materials and slightly different dial styles. This ref. 6012521 version in 18k pink gold is currently the only one with a semi-skeletonized dial. There is also an 18k white gold (6013470) and platinum model (6016490). The former is very interesting because it has a black dial – which is quite uncommon. There also happens to be the ref. 6012420 Jaeger-LeCoultre Duomètre à Chronographe in 18k pink gold without the semi-skeletonized dial.

Handsome and wonderfully “watch nerdy,” the Jaeger-LeCoultre Duomètre à Chronographe is a unique timepiece in a landscape of watches that are either simple and classic, or complicated and avant garde. With the Duometre collection of watches Jaeger-LeCoultre has built a bridge between two types of watch worlds. Attached to the case is a brown alligator strap and retail price for the ref. 6012521 watch is $49,800.  jaeger-lecoultre.com

Necessary Data
>Brand: Jaeger-LeCoultre
>Model: Duomètre à Chronographe 6012521
>Price: $49,800
>Size: 42 mm
>Would reviewer personally wear it: Yes
>Friend we’d recommend it to first:  Seasoned watch lovers looking for a mechanically impressive piece that can nevertheless serve as a dress watch.
>Best characteristic of watch: Very elegantly designed movement and dial that gives being a watch movement nerd a lot of class.
>Worst characteristic of watch: Fantastic for what it is, but some might argue that it is too niche in its appeal.