16 size = 19 1/4”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Balance and hairspring made of palladium alloys according to Paillard
• Swan-neck fine regulator
• Screw-set jewels (Chatons)
• Movement family:
  • No. 71
    Best Quality Nickel Movement; 20 Finest Quality Ruby Jewels in Gold Settings; Jeweled Centre; Exposed Pallets; Double Roller and Full Cap Jeweled Escapement; Paillard’s Patent Non-Magnetic Inoxydable Compensation-Balance and Breguet Hair-Spring; Non-Magnetic Escapement; Accurately Adjusted to Temperature, Isochronism and six positions; Patent Regulator; Double Sunk Dial; finely finished throughout. Hunting and Open Face
  • No. 72
    Fine Nickel Movement; 18 Fine Ruby Jewels in Raised Gold Settings; Centre Jeweled; Exposed Pallets; Double Roller Es-capement; Escape Wheel Cap Jeweled; Paillard’s Patent Non-Magnetic Inoxydable Compensation-Balance and Breguet Hair-Spring; Non-Magnetic Escapement; Adjusted to Temperature, Isochronism and four positions; Patent Regulator. Hunting and Open Face
  • No. 73
    Nickel Movement; 16 Ruby Jewels in Raised Gold Settings; Centre Jeweled; Exposed Pallets; Double Roller Escapement; Paillard’s Patent Non-Magnetic Inoxydable Compensation-Balance and Breguet Hair-Spring; Non-Magnetic Escapement; Adjusted to Temperature, Isochronism and three positions; Patent Regulator. Hunting and Open Face
  • No. 74
    Fine Nickel Movement; 15 Ruby Jewels; Exposed Pallets; Dou-ble Roller Escapement; Paillard’s Patent Non-Magnetic In-oxydable Compensation-Balance and Breguet Hair-Spring; Non-Magnetic Escapement; Adjusted to Temperature, Isoch-ronism and two positions; Patent Regulator. Hunting Only

• Listing ID: 3019
• Manufacturer / Brand: Non-Magnetic Watch Co. of America
• Caliber: No. 73 Open Face
• Size in French Lignes: 16 size = 19 1/4'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 16
• Setting Lever Screw/Pin Position: Right
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Between 1888 and 1892. As the Non-Magnetic Watch Co. of America was founded in 1888 and merged into the Non-Magnetic Watch Co. (without "of America") in 1892, the movement shown should date from this period
• Identification: Illustration of the hunting variant in a company advertisement from 1888.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-30#post-3980933
• External Link 2: https://watch-movements.eu/blog/en/2018/03/18/the-non-magnetic-watch-co-and-paillards-patents/
• Country: U. S. A.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)