Waltham
Matching Serial Numbers? Last week, I posted a c.1918 Waltham Duo-Tone P.S. Bartlett that featured unusual gilt-damaskeened upper plates paired with a nickel pillar plate and balance cock. This spurred.
Waltham P.S. Bartlett #22295427 with Duo-Tone Plates For a short time in the late 1910s, the American Waltham Watch Company produced 16-Size P.S. Bartlett and No. 620 movements with duo-tone.
c.1894 American Waltham Watch Co. Watch #5995794 Dial #2612 c.1894 American Waltham Watch Co. Watch - 18-Size, Model 1883, 15 Jewels, Gilt Trim, Gold Balance Screws with an Odd Fellows.
This post was originally published by Miquel Angel Cladera on his exceptional blog at SaFonaGastroCrono. The English translation has been provided by Google Translate with minor edits for proper clarification..

Pictured: Thomas Edison’s Endorsement of the Non-Magnetic Watch Co., Locomotive Engineers’ Monthly Journal, February 1888. The American Waltham Watch Company introduced a non-magnetic watch to compete with the Non-Magnetic Watch.
Pictured: Waltham Non-Magnetic Watch Advertisement, The Locomotive Engineers’ Journal, February 1888. Just as the Non-Magnetic Watch Company launched their innovative non-magnetic watches in the United States, the American Waltham Watch.