Waltham pocket watch conversion
Waltham pocket watch conversion

40 mm Waltham Grade K from 1898

$3,499.00

This timepiece is a pocket watch conversion, and the movement can be seen through the caseback. The timepiece features 16 jewels and a fancy porcelain-enamel dial.

This piece is in our 40 mm conversion case, learn more about case size and profile.

*Every detail—from servicing, restoring, repairing and casing—is completed in our shop in Little Rock, Arkansas, USA*

This timepiece is a pocket watch conversion, and the movement can be seen through the caseback. The timepiece features 16 jewels and a fancy porcelain-enamel dial.

This piece is in our 40 mm conversion case, learn more about case size and profile.

*Every detail—from servicing, restoring, repairing and casing—is completed in our shop in Little Rock, Arkansas, USA*

American Waltham Watch Co. was in operation from 1852-1957 and was an American pocket watch manufacturer. Manufacturing of Waltham watches took place at their facility in Waltham, Massachusetts.

This Waltham timepiece was crafted in Waltham, Massachusetts, and completed in 1898. It houses Waltham’s 16-jewel K grade—a movement produced from 1891 to 1900. The movement features 16 jewels, an exposed mainspring barrel with golden enamel, and stunning damaskeening (Geneva stripes). Components were carefully refinished with blue accents on the screws and hardware using precise, hand-applied thermal treatment—a traditional watchmaking technique that enhances both corrosion resistance and visual appeal (read more here). The jewel settings, gear train, balance, and balance weights were each individually hand-polished to restore their original golden sheen. The Waltham porcelain-enamel dial is in flawless condition, showcasing golden circular motifs around numerals with subtle blue coloring across the dial. These details complement the aesthetics of the dial beautifully, while the highly legible numerals embody the classic American railroad aesthetic.

The timepiece is housed in a surgical-grade 316L stainless steel conversion case with a 40 mm diameter—offering one of the best fits for any conversion available. The case includes both caseback and crown gaskets, providing water resistance up to 50 meters, though it is recommended to remove the watch before engaging in water activities. The watch comes fully serviced and ready for your next adventure.

Watch Performance

  • Accuracy: +/- 10 seconds per day

  • Amplitude: 275 degrees

  • Beat Error: 1.5 ms

  • Frequency: 18,000 (5 beats per second)

  • Power Reserve: 24-30 hours

  • Complication: Sub second hand

 

Watch Specifications

  • Manufacture: Waltham

  • Location: Waltham, Massachusetts

  • Year Manufactured: 1898

  • Dial Material: Porcelain-enamel (flawless)

  • Jewels: 16 jewels

  • Case Diameter: 40 mm

  • Front Crystal: Domed sapphire

  • Back Crystal: Flat sapphire

  • Case Material: 316L stainless

  • Lug width: 20 mm

  • Lug to Lug: 48 mm

  • Height: 13 mm

  • Original Case Included: No

  • Serial Number: 6542987

  • Water Resistance: 50 meters

  • Warranty: Full 1-Year Warranty

All Frett & Co. Clockworks watches come with a full 1-year warranty unless otherwise stated.