Worn by: Colin Firth as Harry Hart
Reference: Bremont ALT1-WT
Brand: Bremont
When Kingsman: The Secret Service came out in 2014, Bremont landed a prominent role for its ALT1-WT model, which the brand slightly modified for the movie. The Reference Featured prominently throughout the film as part of the Kingsman agents' signature equipment. Bremont co-founder Nick English even had a cameo role in the film, further cementing the brand's connection to the production.

Worn by: Colin Firth as Harry Hart
Reference: Bremont ALT-1B
Brand: Bremont
In Kingsman: The Secret Service, virtually every character in the film wears a Bremont watch, with the brand also producing a limited edition trio of special edition versions of the ALT-1B chronograph. Despite looking like obvious paid product placement, the brand's cameos in the film allegedly came at the request of director Matthew Vaughn, who said: "Kingsmen are first and foremost British, which made Bremont watches the perfect fit. Apart from making fantastic mechanical watches, Bremont has links to the military and their special forces around the world, making them the perfect timepieces for the modern spy." Bremont's Military and Special Projects Division has produced over 500 customized unit watches for various military and government organizations, including several UK Intelligence Services.

Source: https://www.watchesofespionage.com/blogs/woe-dispatch/hollywood-watches-of-espionage-part-3