Selling here a great swiss watch Breitling Callisto automatic running at inside a caliber based on the ETA 2892A2 with 21 jewels. Case has 37mm excl. crown, unidir. rotational bezel, screw-down crown protected with gasket which gives the watch waterproofness to certain levels. The brown dial is in perfect preservation, original color, numeral hour indices. Screw caseback also with gasket protection, marked on the outside with brand;s name and ref. 80550. The inside movement is signed with brand's name and the mainplate is stated the serial no. and movement name: ETA 2892A2 on which it is based, that has been modified by Breitling in order to make it at chronometer grade. It is in perfect condition, no sign of dirt or rust, and the functionality is flawless. This is a high-beat caliber at 28800A/h so its main trait is precision. Comes with an original box made of oak wood, which at inside presents some signs of scuff but nothing serious.