Brand: Nivada Grenchen

Model: Datomaster Chronograph ref. 87003 (ULTRA RARE); Swiss Made circa 1960s

Case: Solid stainless steel case with screw-down back is approximately 36mm excluding the original signed Nivada Grenchen "N" crown and original pushers

Bracelet: 19mm vintage-style stainless steel mesh bracelet (adjustable size via sliding clasp)

Movement: Landeron cal. 187 manual-winding chronograph movement (17 jewels) with date at 12 o'clock; 18,000 BPH; Swiss Made

Features: Stunning original grey dial with white sub-registers and unique date window placement at 12 o'clock; original Tritium handset with matching yellow patina; two-register chronograph with traditional 30-minute recording capability and additional orange marking for 45 minutes; 5-minute yachting regatta countdown (orange scale); incredibly rare and desirable model

Condition: Fantastic original condition overall; solid stainless steel case is thick and sharp with only minor wear; original brushed finish on the caseback with crisp engravings; stunning original grey dial with orange accents; original yellow Tritium lume plots are all present but those at 3 o'clock and 4 o'clock have partially flaked off; original Tritium handset with matching yellow patina; original orange chronograph sweeping-seconds hand

Other: This is a rare chance to own a nice original example of the elusive Nivada Grenchen Datomaster. It's no secret that the Datomaster has a cult following of its own among vintage collectors, but very few of these exist and they are nearly impossible to track down. Fortunately for you, we've gone ahead and done all of the hard work for you. You can read more about the Datomaster in Michael Stockton's in-depth article for FratelloWatches. Louis Westphalen of HODINKEE also featured one for sale on Bring A Loupe on May 19, 2017. Hint: These almost NEVER come up for sale. As Louis points out, "it is the date placement at 12 o'clock that makes the watch stand out, much like the Heuer Dato ref. 3147" (first execution). Both watches are powered by a rare Landeron caliber. What's not to love about this watch? And with the prices of other rare vintage chronographs skyrocketing, you may never get another opportunity to own one of these beauties.