Discount 3% on bank payments       Worldwide shipping       Pick up in Geneva, Switzerland

LONGINES Chronograph Ref. 7411-2, Cal. 262

CHF 2,500


Extremely rare steel 67mm LONGINES Ref. 7411-2, split second / rattrapante chronograph and observatory! certified chronometer pocket watch with constant force escapement, powered by legendary Longines Cal. 262. In fact in 1968 this particular piece SN: 12303645 was submitted to timing contests to Neuchâtel Observatory, where scored N=5.84 (very good result)!

Legendary highly ingenious calibre 262, definitely the last cutting edge of mechanical engineering before the age of electronic timekeeping. The movement was conceived to be the most precise split-second chronograph on the market and it succeeded. It was responsible for timekeeping at several Olympic Games in the mid 20th century and at other major sporting events, including the Tour de France. The cal. 262 is manually wound, high frequency movement that runs at 36,000 beats per hour. It’s a large, robust movement with a diameter of 24’’’, or just over 54mm, with 26 jewels and a special Nivarox hairspring, self-compensating Guillaume balance and swan-neck micrometric regulator index. More importantly, the cal. 262 also includes a remontoir, or constant force mechanism, in the escapement, to ensure stable timekeeping even with the chronograph engaged. The ‘constant force’ mechanism consists of a small spring mounted on the seconds wheel and wound by the main gear train. It is this secondary spring which is supplying power to the escape wheel. As it is kept in virtually constant tension by the frequent winding, the power delivers to the escape wheel and balance is thus much more ‘constant’ than the usual gear train system.

The apex of Longines horological technology, comes together with its original sport timer case, in a great condition, the dial is still with photo indicator on small seconds is in overall good 8/10 condition, running and ready to use!


Brand Longines
Model Split second / rattrapante chronograph and observatory! certified chronometer
Reference 7411-2
Year Circa 1960s
Movement Manual winding
Calibre Cal. Longines 262 / 260
Case material Stainless Steel
Case size 67 mm
Features constant force escapement, observatory! certified chronometer
Box/Papers original sport case, no papers


In fully working order. Good condition 8/10, minor surface scratches, scuffs and discolorations through the age. See photos.

Watches are sold as-is, and there is no guarantee of to be waterproof or movement accuracy, due to the nature of vintage watches. Please view all the pictures carefully as they form an integral part of the description. Any defects not mentioned but visible in the pictures will be considered as described.


    • No products in the cart.