Question: Which co-founder developed Swatch as a response to the "quartz crisis"?

full_context: Document 1: Nathalie Colin: Nathalie Colin is a French Creative Director born in 1966 in the East of France. In 2006, she was appointed by Swarovski as Creative Director for the Consumer Goods Business division (CGB), in charge of modernizing the brand. She is still currently leading all creative studios, in charge of the international collections of jewelry, watches, accessories, and crystal living. Nowadays, Swarovski Crystal Business has a global reach with approximately 2,680 stores in around 170 countries, more than 26,000 employees, and revenue of about 2.6 billion euros (in 2016).
Document 2: The Swatch Group: The Swatch Group is a Swiss manufacturer of watches and jewelry. The company was founded in 1983 by Nicolas Hayek from the merger of Allgemeine Gesellschaft der Schweizerischen Uhrenindustrie (ASUAG) and Société Suisse pour l'Industrie Horlogère (SSIH).
Document 3: Bottega Veneta: Bottega Veneta is an Italian luxury goods and high fashion brand house best known for its leather goods which are sold worldwide and its men's and women's ready-to-wear. Founded in 1966 in Vicenza, Veneto of northeastern Italy, its atelier is located within an 18th-century villa in Montebello Vicentino and its headquarters are in Lugano, Switzerland with offices in Milan and Vicenza, Italy. In 2001, Bottega Veneta was purchased by Gucci Group, and is now a part of the French multinational group Kering. In September 2016, it was announced that Claus-Dietrich Lahrs would be named CEO, replacing Carlo Beretta.
Document 4: Nizar Assaad: Nizar Assaad (in Arabic نزار اسعد) is a Canadian construction engineer of Syrian origin residing in Beirut, Lebanon and Dubai, UAE. He is Founder, Chairman and CEO of LEAD Contracting & Trading Ltd, an industrial construction company operating throughout the Middle East and North Africa. LEAD is specialised in oil and gas contracting and petrochemical facilities, including treatment plants, power plants, electro-mechanical construction services, pipelines, and large-scale civil construction and engineering projects. the company is registered in Jebel Ali Free Zone in UAE. Nizar Assaad is considered to be a leading figure in the Construction and Petrochemical Industry.
Document 5: Swatch: Swatch is a Swiss watchmaker founded in 1983 by Nicolas Hayek, and is subsidiary of The Swatch Group. The product line was developed as a response to the "quartz crisis" of the 1970s and 1980s, in which Asian-made digital watches were competing against traditional European-made mechanical watches.
Document 6: ETA SA: ETA SA Manufacture Horlogère Suisse (ETA SA Swiss Watch Manufacturer) designs and manufactures quartz watches and both hand-wound and automatic-winding mechanical ébauches and movements. Commonly referred to as ETA, the company is headquartered in Grenchen, Switzerland and is a wholly owned subsidiary of The Swatch Group Ltd.
Document 7: Nicolas Hayek: Nicolas George Hayek (19 February 1928, Beirut – 28 June 2010, Biel/Bienne), was a Swiss-Lebanese entrepreneur, co-founder, CEO and Chairman of the Board of the Swatch Group, with principal headquarters in Biel/Bienne.
Document 8: Quartz crisis: The quartz crisis (also known as the quartz revolution) is a term used in the watchmaking industry to refer to the economic upheavals caused by the advent of quartz watches in the 1970s and early 1980s, which largely replaced mechanical watches.
Document 9: Eterna: Eterna is a Swiss luxury watch company founded in Grenchen, Canton Solothurn on 7 November 1856 by Josef Girard and Urs Schild. The company is now owned by Hong Kong based Citychamp Watch & Jewellery Group Limited (an investment holding company formerly known as China Haidian Holdings until 2014).
Document 10: Al Ghurair Group: Al Ghurair Group (Arabic: مجموعة سيف الغرير) (also known as Saif Al Ghurair Group) is a Dubai, United Arab Emirates-based business group founded by the Al Ghurair family. A diverse conglomerate, it has operations in the Middle East, North Africa, Europe and North America. The grandsons of Al Ghurair Group founder Ahmad Al Ghurair run the group. Abdul Rahman Saif Al Ghurair serves as group chairman and Majid Saif Al Ghurair is the group's chief executive officer.
Document 11: Concord watch: Concord Watch Company is a Swiss luxury goods company that is part of the Movado group that owns Movado, Ebel, ESQ, Coach and Hugo Boss. Founded in 1908, Concord was purchased in 1970 by the North American Watch Company, which also distributed the Piaget and Corum lines of watches. From the late 1970s to the late 1980s, Concord produced what would become some of the most marketed and respected luxury quartz watches on the market. Concord watches became recognized in large cities as status symbols and were noted for their innovation and design. Flagship quartz models such as the Concord Centurion and Concord Delirium ranged from $2,000 to $20,000 surpassing the price of base automatic Rolex, Cartier and Omega wristwatches. By the 1990s Concord watches fell out of style and grew obsolete amidst the re-branding of the company. While the brand still exists today, it never regained its market position nor visibility that it once had.
Document 12: Longines: Longines (] , ) is a luxury watch company based in Saint-Imier, Switzerland. Founded by Auguste Agassiz in 1832, it is currently owned by the Swatch Group. Its winged hourglass logo is the oldest registered trademark for a watchmaker.
Document 13: Antoine Choueiri: Antoine Choueiri (August 3, 1939 – March 9, 2010) was a Lebanese media executive. He was the founder of Choueiri Group, the Middle East’s largest media broker. He was born in Beirut in 1939 to a Maronite Christian family from Bcharre and married his wife Rose Salameh in 1961 who gave birth to two children. He died on March 9, 2010 of health complications, he is buried in his ancestral home of Bcharre
Document 14: Swatch (disambiguation): Swatch is Swatch Group's namesake brand of watches.
Document 15: Endura Watch Factory: Endura S.A. is Swiss watch manufacturer founded in 1966 by General Watch Company (GWC) in Biel/Bienne, Switzerland, for the purpose of manufacturing watches under "private label". This company was also part of the merger between ASUAG and SSIH into SMH, now the Swatch Group. Now attached to ETA SA Manufacture horlogère Suisse, Endura SA is the Private Label and licensing division of the Swatch Group.
ground_truth: Nicolas George Hayek