This is the handwound version of the El Primero chronograph that Zenith sold in the late 90's. This particular variety has 20-micron gold plating and no numerals (except the 12), providing a clean and classy style. Includes original Zenith branded buckle and gator strap. Full photo album (including video) here: [https://imgur.com/a/zxQrOpC](https://imgur.com/a/zxQrOpC) Timestamp here: [https://imgur.com/jBtO6OW](https://imgur.com/jBtO6OW) **~Tech Specs~****:** 38mm case diameter (not including crown or pushers) 45.7mm lug-to-lug length 11mm overall thickness (including slightly domed crystal) - probably the thinnest mechanical chronograph you'll find outside of high horology cal 420 movement hi-beat 36,000 vph (seconds hands tick at 10 Hz) reference 20.0010.420 More info about this and other handwound El Primero models can be found here: [https://www.watchuseek.com/threads/zenith-el-primero-hw-zenith-prime-cal-420.434241/](https://www.watchuseek.com/threads/zenith-el-primero-hw-zenith-prime-cal-420.434241/) This watch is in need of service. All functions work, however it will randomly stop keeping time when it should still have plenty of power reserve remaining. This behavior began unexpectedly after almost two years of ownership, without any obvious cause such as a drop or bump event. Rather than have it serviced myself, I decided to pass it along to the next owner and free up some space in my watch box. There's also a minor blemish on the crystal between the 10 and 11 indices that's only available in certain lighting angles. It is circled in red in one of the photos. Asking $1,400 shipped to the contiguous 48 states (or add extra for shipping elsewhere).