Heuer Calculator 110.663

Notes

Our vintage and rare Heuer Calculator Chronograph reference 110.633 features a 45mm stainless steel case. With automatic movement, date and chronograph function, the bezel also serves as a mechanical calculator, enabling the user to measure and calculate, via the slide rule, basic mathematics. Designed as a mobile tool for use in scientific, aviation or motorsports arenas, this was arguably a more legible option to the ubiquitous Breitling slide rule watches, such as the Navitimer, and in a contemporary post space age style. The condition of this example is superb, unpolished and with coeval patination to the dial and hands. This is without doubt the best Heuer Calculator we have handled, coming directly from a serious collection and likely destined for another. We date this example to c.1975. Neither box nor papers are present, a presentation pouch will be included at point of sale. A generic quality leather strap and tang buckle are fitted.