This is an extremely rare BREITLING UNITIME ref. 2610 with inner, rotating, checkerboard 24 hour bezel that displays 24 hour time at the 12:00 POSITION (at a a glance). The outer bezel also rotates to mark a second time zone. This dial is incredibly clean and original; glossy, deep black with luminous (still glowing markers, original hands and luminous sweep seconds. The red date at 6:00 does change over perfectly at 12… the hands were just backed up while photographing. The automatic BREITLING movement was JUST cleaned and is keeping excellent time, with the 24 hour bezel turning perfectly. The original BREITLING winding crown and crystal is still present. The case displays excellent overall condition, having sharp edges and NEVER polished.