本帖最后由 loui 于 2013-7-2 22:48 编辑
nch2009 发表于 2013-7-2 13:24 
老汉用的是宝玲的芯？
嗯，1966 Hamilton 收购了 Buren 。。。。。。
Joint Swiss/U.S. operations: 1969–1972[edit] 
Swiss Hamilton/Buren Micro-rotor movement
In 1966, Hamilton acquired the Buren Watch Company in Switzerland, including all factories and technologies that had been developed by Buren up to that point. From 1966 to 1969, Hamilton Lancaster and Buren Switzerland were operated as a joint concern, with Hamilton using a number of Swiss movements for their "American" watches and Buren utilizing a number of components manufactured by Hamilton Lancaster. It was during this time that Hamilton started to selectively incorporate the highly innovative Buren Micro-rotor (a.k.a. Micro Rotor/Micro-rotor) movement into small numbers of certain upper tier watches, in addition to their ordinary hand-wind and traditional automatic watches.
The Buren (now Hamilton/Buren) Micro-rotor was the first patented automatic wristwatch movement to eliminate the sizable external oscillating weight inherent to most automatic winding watches. Instead, it utilized a much smaller weight that was entirely integrated into the chassis of the movement. This design allowed for a substantially slimmer automatic watch that still retained a center sweep second hand. The Micro-rotor concept was also conceived by Universal Genève for use in their famous Polerouter series of timepieces during this same time. The official title of "first Micro-rotor movement" is still in dispute amongst some horology aficionados, even though Buren patented their design in 1954[7] while Universal Geneve applied for their patent in May 1955.[8]
In 1969, the Hamilton Watch Company completely ceased its American manufacturing operations with the closure of its factory in Lancaster, Pennsylvania, shifting the entire balance of its manufacturing operations to the Buren factory in Switzerland.
From 1969 to 1972, all new Hamilton watches were produced in Switzerland by Hamilton's Buren subsidiary. In 1971, the Buren brand was returned to Swiss ownership and by 1972, the Buren-Hamilton partnership was dissolved and the factory liquidated, due to decreased interest and sales of the Hamilton-Buren product.[9]
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发表于 2013-7-2 22:11
发表于 2013-7-2 22:43
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