Split second Watch no. 4125

Case: Missing Dial: White enamel, blued steel spade hands, subsidiary seconds dial, signed "CH Meylan, Brassus" Movement: Nickel, micrometer regulator, signed "4125, Adjusted, CH Meylan, Brassus, Pat 1880" Provenance: 19?? - CH Meylan, Brassus 2020 - ebay #223823012038, Sacramento, $170.50, 5 Jan 2020