OMEGA Pocket chronograph watch in steel with mechanical movement. Round steel case, smooth bezel, fluted crown with integrated pusher, officer's back. White enamel dial, black painted minute track, black and red painted Arabic numerals, gilded Poire Stuart hands, small seconds at 6 o'clock, 15-minute totalizer at 12 o'clock, blued steel central right chronograph second hand.signed case, dial and movement.Movement: mechanical, hand-wound.Movement numbered 4.552.180 (circa 1913)Case numbered 5.672.904 (circa 1915)Diameter: 50 mmInteresting version of the "standard" pocket chronograph, but with a 15-minute chronograph totalizer, enabling measurement of short times, as in sporting events.Its double graduation, from 1 to 12 hours in black and from 13 to 24 hours in red, also embellishes this enamel dial in very good condition.Condition report:Good overall condition, good condition of the dial, wear scratches and patina on the case, the watch works at the time of the appraisal, with no guarantee of operation over time, a service recommended.Clarification of the terms Chronograph and Chronometer:- Chronograph: mechanical or electronic measuring instrument used to record time, often by means of a hand or one or more counters (seconds, minutes or hours). It can be mechanical (manual or automatic) or quartz. A chronograph, literally "Time (chronos) written (graph)", can be certified as a Chronometer: a mechanical or electronic measuring instrument that has undergone the tests of the Contrôle Officiel Suisse des Chronomètres (COSC), based in La Chaux-de-Fonds since 1973, to verify the precision of movements and assembled watches. These tests are carried out over 14 to 20 days and are independent of brands. If the watch passes these tests, it is then "Certified Chronometer". The first modern Olympic Games as we know them took place in Athens in 1896. Nine sports, ten disciplines, fourteen countries represented, forty-three events, contested by two hundred and forty-one athletes. This enumeration could be likened to reading a clock. From 1932 and the Los Angeles Olympic Games onwards, Omega became the official timekeeper for both summer and winter competitions. To do this, the Swiss manufacturer had to supply the judges and referees with chronographs capable of measuring short times with the utmost precision. This is why large-diameter pocket watches are equipped with split-seconds functions, 1/5-second graduations, counters that turn the dial in 30 seconds...The Olympic Games are showcases for Omega's expertise around the world. Even before modern communication, timed results appeared with the name of the brand founded by the Brandt family. With the progress made in the development of specific products, the Biel-based brand was able to exploit these innovations and bring them to the general public. The lots presented in this section of the sale were carefully researched by Joël Duval. They often bear the inscription "Olympic" and may have been used to time sporting events. Others are linked to the history of the modern Games, such as the Seamaster Albatros watch, released for the Montreal Games in 1976, equipped with a quartz module capable of timing to 1/100th of a second. Commemorative and special series have also been produced for almost 50 years, and even though electronic and video equipment has gradually replaced mechanical measuring instruments, these pocket or wrist chronographs are part of the history between sport and watchmaking.For several years, the firm Vermot et Associés has been offering sales dedicated to sports and the Olympic world, entitled "Sportlympique".in 2022, the firm Vermot et Associés, in its "SportlympiqueVIII" sale, sold a number of Olympic torches.lots and descriptions are available on the firm's website.