Caliber 23

About the Breitling Caliber 23

The 7753 rearranges the 7750's chronograph works so the subdials sit on the horizontal axis, the layout the 1960s chronographs used, and it moves the date correction to a pusher at 10 o'clock. Breitling's version is COSC-certified, runs at 28,800 vph with a 42-hour reserve and 27 jewels, and is offered with or without the 12-hour totaliser. The 7750 piece explains the base.

That tri-compax layout is why the library finds it in the retro lines: the Chronospace Automatic 46 accounts for 22 references, the Superocean Heritage Chronograph 44 for 10, the Montbrillant for 7, the Navitimer for 7 and the Top Time for 6, whose 1960s "Zorro" dial is drawn around exactly this counter arrangement. Cases run from 41 mm to 47 mm, with 46 mm the most common at 22 references.

The Caliber 13 is the standard 7750 with the vertical counter layout, and the Caliber 21 the 7751 with a full calendar.