Nov 8, 2025 - Nov 23, 2025
Watch Brand: New Columbus Watch Co.
Case Maker: Keystone Watch Case Company
Case Serial: #7340339
Type: Key-wind or stem-wind pocket watch (open-face style)
Era: Circa 1890–1910
Movement: Manual wind (likely 11–17 jewels)
Case Material: Gold-filled or rolled gold plate
Dial: Porcelain enamel with Roman numerals and floral garland decoration
The dial is enamel, featuring black Roman numerals, a seconds subdial at 6 o’clock, and a delicate floral border — a beautiful touch that was common on watches marketed toward elegant or commemorative use in the late Victorian to Edwardian period.
The hands are spade-style blued steel, a classic American style.
The printing “New Columbus” identifies the movement manufacturer.
The Keystone Watch Case Company was one of America’s leading case makers, based in Philadelphia. They produced cases for many American watch companies, including Elgin, Waltham, and Columbus.
The case is stamped with Keystone’s logo and serial #7340339.
This particular case is gold-filled, which means it’s a base metal core with a thick gold overlay. Keystone guaranteed most of its gold-filled cases for 20 to 25 years.
The bezel and bow (ring at the top) have light decorative engraving — another feature consistent with ca. 1900 design.
The movement inside, likely stamped “New Columbus Watch Co.” or “Columbus Watch Co.,” would contain the actual works and serial number that can precisely date the watch.
Common models from the company in this period were 11-jewel and 15-jewel grades, key or stem wound depending on year.
| Feature | Description |
|---|---|
| Maker | New Columbus Watch Co. |
| Case Maker | Keystone Watch Case Co. |
| Case Serial | #7340339 |
| Material | Gold-filled (20-year guarantee) |
| Dial | White enamel, Roman numerals, floral garland |
| Movement | Manual wind, c. 1890–1910 |
| Style | Open-face |
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Sold as-is.
The watch is offered as shown, with movement and functionality untested.
Key Stone Watch Case 7340339
The Columbus Watch Company was founded in Columbus, Ohio, in 1874. It produced mid- to high-grade pocket watches and was known for their reliable and decorative movements. Around 1903, parts of the operation were reorganized under the name “New Columbus Watch Co.”, continuing until the early 1910s.
The company was eventually absorbed into the South Bend Watch Company, which carried on some Columbus designs.
Using the Keystone case serial number (#7340339) and the style of dial and case design, this piece dates to roughly:
➡️ 1905–1915.
If you open the movement cover (the inner rear lid), you can find the movement serial number — that number allows for exact year dating and model identification.
Shipping
Shipping & Pick-Up Information
General Policy:
Buyers are responsible for all shipping costs. Shipping information is not included in the purchase price of your item(s).
If you are the successful bidder, you may either:
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📞 (262) 799-5167
Available payment options
Thank you for bidding with Best Estate Services. The auction has now closed. Winning bidders can expect to receive an invoice for their winning lots and a separate shipping invoice within the next 48–72 hours. This invoice can be paid directly through the payment link sent to you. Please note that your winning bid invoice and shipping invoice are two separate invoices. If pickup is available for your items, you will have the option to select pickup when you receive notification from our shipping department. After selecting pickup, you will be notified of the pickup location and available pickup time window. Thank you again for participating in our auction.