Collect antique horological have a key: Should go from horological two large construction appraisal of have sth in mind, namely machine core and all sorts of exteriors.

• 18世纪末到19世纪初，帝国式风格使怀表表壳的设计显得更为简洁，外观的装饰也更为朴素，表盘通常是白色的珐琅面。