Chronometer no. 48171
Case: Unknown, converted to wristwatch for some reason.
Movement: Extra thin nickel 2.2mm, bi-metallic balance with flat blued steel balance spring with polished steel kidney piece, signed "Extra Adjusted, Swiss", stamped with Geneva seal, numbered "48171" on main plate, hanging mainspring barrel.
19?? - Haas Neveux, Geneva
2008 - forums.timezone.com, 26 Mar 2008