SOCHI, Russia — For the 26th time since 1932, when it first kept time at the Los Angeles Summer Olympic Games, the Swiss watchmaker Omega will be the official Olympic timekeeper again next month, at the Winter Games in Sochi, Russia.

Since the closing ceremonies of the 2010 Games, in Vancouver, British Columbia, Omega has been on the ground in Sochi, wiring the 11 coastal and mountain Olympic sites with a variety of complex instruments that will help officials measure and display the results of each event.

Omega’s chief Olympic timekeeper, Peter Hürzeler, 75, has overseen the management of nearly 300 on-site technicians in Sochi and the installation of more than 400 tons of time-keeping equipment.

“Milestones in Olympic time-keeping have been evolving at Omega long before my arrival,” Mr. Hürzeler, who has monitored Omega’s time-reporting accuracy at 16 Olympic and Paralympic Games, in both winter and summer, said in an interview. “But since the first televised Games at Innsbruck in 1964, time-keeping devices, digital film and cameras, and improving laser technology are allowing us to report more accurate, and nearly instant, results to Olympic judging officials and to viewers at home.”