Ya puedes felicitar a tu amigo.
Según Omega, el reloj más exacto y avanzado de pulsera jamás hecho, y el único reloj de pulsera hasta la fecha que ha obtenido el título de cronómetro marino. Esto... que aprendan los del "Hiperlative Chronometer Oficially Certified"...
OMEGA Marine Chronometer, 1974
<!-- Header: [end] --> <!-- Text: [begin] --> The most accurate wristwatch in the world.
Still today, the Megaquartz 2400 is, indisputably, the most accurate, the most technologically advanced wristwatch in the world.
Developed by OMEGA in collaboration with the Battele Institute of Geneva, the first prototypes (cal. 1500) were presented at the Basel Fair in 1970.
https://www.omegawatches.com/index.php?id=497
Calibre 1500 Elephant, 1967
<!-- Header: [end] --> <!-- Text: [begin] -->
Project coordinator: John Othenin-Girard (under the direction of Hans Widmer)
Description: This was not only the first high-frequency quartz calibre in the world (1970), it was also the most precise. Developed in collaboration with the Institut Batelle in Geneva, it has an unrivalled precision of ±1 second per month. This made it the most precise watch in the world.
It owed its precision to a special design of miniscule lenticular quartz, oscillating at an almost inconceivable frequency of 2 359 296 times per second. Furthermore, this high frequency allowed one of its versions, calibre 1511, to be homologated on 25 February 1974 by the Astronomical and Chronometric Observatory of Neuchâtel as a Marine Chronometer. It is the only wristwatch ever to have obtained this title! Moreover, the Megaquartz 2400 is the first watch to have been equipped with the TSA device (Timezone and Second Adjustment), allowing the hour to be changed without adjusting the second or minute and for tiny adjustments to be made to the second and to allow this to be synchronised with the time signal.
For the first time in the history of watchmaking, the significance of the second was thus truly underlined! With its derivatives 1510 (calibre standard) and 1511/1516 (marine chronometers), around 10 0000 Megaquartz 2400 units would be produced, of which 8000 units were of the 1516 calibre.
https://www.omegawatches.com/index.php?id=534