Rare 1970 Hamilton Count-Down GMT Chrono-Matic

This uber-rare Hamilton Count-Down GMT Chromatic is a watch that is rarely seen outside of private collections. The Chronomatic has a large 48mm satin-brushed case, anodized red pushers and features a chrono-matic cal.141 with an additional GMT hand and two crowns used to rotate 24h and time-zone bezel rings. This watch is in mint condition and has never been polished.

The Count-Down GMT Chronomatic uses a movement that was a joint development bij Breitling, Heuer, and Buren on being the first company to produce an automatic chronograph. In this case, is featured the micro-rotor automatic winding mechanism with a beat rate of 19800 A/h. This chronograph was named caliber 11, together with its caliber family (caliber 12 (higher beat rate), caliber 14 (GMT) and caliber 15 (small second) they were called the “Chrono-Matic”. All 3 companies (Breitling, Heuer, and Buren) used these movements in their watches. But how does Hamilton fit in? Well, Hamilton acquired the Buren firm in 1966. Hamilton dubbed this modified moment the Cal. 141. The distinct design features the chronograph push buttons on the opposite of the crown, which mostly leads to watches with the crown on the left and pushers on the right. When looking at the back of the watch the number 141001-3 is shown. Indicating it has the caliber 14 or Hamilton 141 movement.

This timepiece is not only functional but extremely sought after among the watch collecting community. This would make a great addition to the expanding collector's collection and is an eye-catching conversation starter of a timepiece!

Stock # HAMCM701
Brand Hamilton
Style Chronograph, GMT
Model Count-Down GMT Chronomatic
Serial N/A
Size Men's
Material Stainless Steel
Dial Black White Sub-Dials
Millimeters 48mm
Strap Stainless Steel Bracelet



The case remains in original condition showing no signs of polishing or excessive wear.  The watch also comes on an early vintage bracelet which matches the timepiece with an engraving on the back which we chose to leave intact as it adds to the history and character of the piece. The original crystal does show some crazing when looking through the crystal at an angle.

Dial & Hands

The dial is in absolutely flawless and stunning condition. The tritium lume on the dial and within the hands has achieved a wonderful yellow patina. The inner rotating, city and GMT hour discs function and turn smoothly just as they should.


None. The watch just received a full service and is running at COSC spec backed by a 1-year warranty for accurate timekeeping.