====== 1977 ====== * [[Patek Philippe]] manufactures the flattest [[self-winding]] movement [[PP 240|Cal. 240]] with a height of only 2.40 mm. * [[Seiko]] launches the brands [[Pulsar]] and [[Alba]]. * [[Vacheron Constantin]] launches the [[Vacheron Constantin 222|222]] line, predecessor to today's [[Vacheron Constantin Overseas|Overseas]] * [[Rolex]] introduces the [[Rolex Oysterquartz|Oysterquartz]] with their in-house [[quartz]] movement, replacing the 7 year old [[Beta 21]]-powered [[Rolex Quartz Date|Quartz Date]]. <- [[1976]] | [[1978]] -> {{tag>Year}}