8332 CRONÓGRAFO monopulsador en oro de ley de 18K, circa 1920, RARO CALIBRE LANDERON HAHN (HAHN FRÈRES) 
Old gold chronograph single push of 18K and original dial made of white enamel (porcelain) enamel on metal base cóncavade. TELEMETRY and tachymeter scale in navy blue and burgundy in color. As shown in the pictures, dial is in very good condition. Pica original style whip hands with blued finish. Original case, in gold of 18K, punched (punches Swiss origin) inside the cover, attached to the box through a small hinge in good use. The bezel is also attached to the case with a hinge in good use. The original glass of the time. Dust or second rear cover made of gilded metal. Original machinery, mechanical manual loading gauge HAHN LANDERON. It is a rare caliber, highly sought by collectors because it is one of the first produced by the Hahn Landeron Brothers (HAHN FRÈRES in Fontainemelon (Suisse), since 1873), high quality and aesthetics. This caliber has counter register 30 minutes and measures 29.30mm. It also has 17 "Jewels" or rubies. Measures: 39mm wide including the original crown "onionskin" or striped handle to handle 41.50mm (fixed handles, as befits the time). CIRCA 1920.
 Exquisite piece of high collectors!