Longines is considered to be a pioneer in the chronograph evolution. First launched in 1936, the Longines 13ZN chronograph movement is still considered today as one of the most beautiful and technically interesting wristwatch chronograph movements ever produced. Designed as a flyback chronograph, the user can quickly reset the chronograph seconds hand to zero while its still running without the need to first stop it. This avant garde caliber not only impresses collectors but watchmakers as well. It is no secret that the watchmakers and engineers of the venerable German brand A. Lange & Söhne took inspiration from the Longines 13ZN when creating the caliber L951.1, their acclaimed, inhouse chronograph movement launched in 1999 in the Datograph.

The present lot boasts a large 37.5mm stepped case and a lovely ivory colored multi scale dial. The screw-down casebacks, as found on the present lot, are highly desirable and nicknamed “tre tacche” in Italian. The literal translation in English is three notches, and refers to the three grooves carved out on the casebacks, permitting them to be screwed down. The caseback is stamped ‘28’ matching with the number found on the underside of the case’s lug.

The present lot is a fine example of Longine’s savoir faire and is both visually and technically stimulating.