The successor of the renowned Milgauss 6542 featuring the lightening seconds hand, the 1019 was also designed to be resistant to strong electrical fields (milgauss meaning in latin one thousand and gauss the unit of a magnetic field) and was made to appeal to scientists working in such environments. Due to its limited appeal, sales were dissapointing with many examples remaining unsold for years sometimes even a decade. One of the great vintage Rolex sport watches still tremendously under-valued.