The opinion uses a Unitas 6498 movement, a 16 1/2-ligne manual caliber. Currently owned by ETA (and sometimes referred to as the ETA 6498), it runs in 17 jewels and contains a pocketwatch-style power book of 18,000 vph. The motion has been skeletonized, decorated, and chamfered by hand. The Renaissance Orange Tornado is large: it’s a … Continue reading Aerowatch Beyer Chronometer