Watches are said to be co-branded when they share the brand of two separate entities. Many watches are co-branded with automobile companies, for example.

• See Also Automotive watch brands

• Breitling for Alfa Romeo (1997-1998)
• Chopard Alfa Romeo (2005, 2010)
• Giuliano Mazzuoli Alfa Romeo
• Girard-Perregaux/JeanRichard Alfa Romeo

• Jaeger-LeCoultre AMVOX (2003-2016)
• Richard Mille - Announced in 2016 but no product produced
• TAG Heuer Aston Martin (2018-2020)
• Girard-Perregaux Aston Martin (2021-present)

• Certina Quattro Audi Design (1983)
• Heuer Audi Sport (1985)
• Audi Design by Sinn (2004-present) - Audi Design branding only
• Oris Audi Sport (2014-present)

• Breitling for Bentley (2003-present)

• Ball for BMW (2012-2016)
• BMW by Fossil (2019-present)
• BMW Design by Ventura
• Girard-Perregaux BMW Oracle Racing - Co-branded with BMW and Oracle as a sponsor of the BMW Oracle Racing America's Cup yacht racing team rather than the automobile products

• Parmigiani Bugatti (2001-2019)
• Mido Bugatti (1930s)
• Breguet (1930s)
• MHR Bugatti (1990s)
• Japy Type 32 - “inspired by Bugatti”

• Sinn

• See Also Ferrari
• Heuer Ferrari (1970s)
• Longines Ferrari (1980s)
• Ferrari Formula by Cartier (1980s) - Ferrari Formula branding only
• Girard-Perregaux Ferrari (1994-2004)
• Ferrari Engineered by Officine Panerai (2005-2010) - sold by Panerai without their branding
• Scuderia Ferrari One by Cabestan (2010)
• Hublot Ferrari (2011-present)
• Scuderia Ferrari by Movado (2012-present) - Scuderia Ferrari branding only

• Roger Dubuis Excalibur Spider Italdesign Edition (2017)

• Bremont Jaguar (2010-present)

Note that the Jaguar brand, currently part of Festina, is unrelated to the automobile maker.

• Blancpain collaborated on marketing with Lamborghini from 2009 to 2016 but did not produce any co-branded watches
• Roger Dubuis Lamborghini Squadra Corse (2018-present)
• Tonino Lamborghini watches are designed by the son of Lamborghini founder Ferrucio Lamborghini and use the brand's bull logo with permission but are not co-branded with the car maker.

• Zenith Land Rover (2016-present)

• Audemars Piguet Maserati (2004-)
• Bulgari Maserati (2012-present)

• Wilhelm Rieber

• TAG Heuer SLR (2004-2010) - Part of the TAG Heuer Mercedes-McLaren SLR partnership
• Richard Mille McLaren (2018-present)

• See Also Mercedes-AMG
• Anonimo Chronoscopio AMG
• IWC Ingenieur Mercedes AMG (2005-2018)
• Panerai Mercedes-AMG
• Sinn Mercedes AMG
• TAG Heuer SLR (2004-2010) - Part of the TAG Heuer Mercedes-McLaren SLR partnership

• Christopher Ward Morgan (2016-present)

• Breitling Norton (2018-present)

• Cvstos Pagani

Note that Porsche Design is not in itself a co-branding exercise; the Porsche Design company is unrelated to the famous automobile brand. However, there are many tie-ins, starting with the founder, Ferdinand Porsche. Recently, Porsche Design collaborated with Porsche for the Porsche Design Chronograph 911 Turbo S Exclusive Series.

Porsche Design watches have been produced by the following companies

• Orfina
• IWC
• Eterna
• TAG Heuer x Porsche

• Corum Rolls Royce

• IWC Mark XII Mellow Yellow for Saab (1997) - “SAAB” branding on the dial, 210 produced

• Baume & Mercier Shelby Cobra (2015-present)

• Oris Williams F1