Pair-case watch
Watchmaker: Thomas Tompion British
Case maker: Nathanial Delander British
This extraordinary watch records seconds on the subsidiary dial above the number VI on the chapter ring for hours and minutes. It also has a remarkably early stop mechanism that can be activated at will in order to measure short intervals of time. The watch is not numbered on the back plate, but it is numbered 175 on the pillar plate and on the inner case.
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