Pocket Watch Database

American Watch Co.

Waltham, Mass.

Location: Waltham, Mass.

Years of Operation: 1857-1892

Sold to the Crescent Watch Case Company in 1890.

The March 7, 1877 issue of the Boston Evening Transcript reported that the "Waltham Building" on Bond Street in New York was destroyed by fire. Operated by Robbins & Appleton, this building housed the gold case factory that manufactured the Waltham cases (A.W.Co.).

Case Grades

Note: This chart is not intended to be a comprehensive list of grades. Some grades changed traits over time and other grades may not be listed. This chart will be improved as additional information is studied.

Image Name Case Material Gold Content Gurantee Source Catalogs Trademarked
Watch Case Marking for American Watch Co. A.W.Co. 10K 14k/8k: A.W.Co. 10K 14k/8k Gold 14K/8K 1883UNK, 1884LSS, 1886RA, 1888OY, 1888BA, 1889BAM, 1890OY, 1890SFM, 1891SAC
Watch Case Marking for American Watch Co. A.W.Co. 14K: A.W.Co. 14K in Pointed Ribbon A.W.Co. 14K Gold 14K 1883UNK, 1883GHR, 1884LSS, 1886RA, 1888OY, 1888BA, 1889EVR, 1889BAM, 1890SFM, 1891RR, 1891SAC
Watch Case Marking for American Watch Co. A.W.Co. 18K: A.W.Co. K18 in Oval 18K A.W.Co. 18K Gold 18K 1883UNK, 1883GHR, 1884LSS, 1886RA, 1888BA, 1889BAM, 1890SFM
A.W.Co. Aluminine Aluminum 1888BA, 1889BAM
Watch Case Marking for American Watch Co. A.W.Co. Coin Silver: Am. Watch Co. Eagle Waltham, Mass. Star AWCo Shield Waltham Pat. Apr. 22. 79 Coin Am. Watch Co. Waltham, Mass. Warranted Coin Silver A.W.Co. Coin Silver Coin Silver 1880NHW, 1880GHR, 1882SFM, 1883UNK, 1886RA, 1888OY, 1888BA, 1890BA, 1890SFM, 1891RR, 1891SAC, 1893MCE, 1893BHIA
Watch Case Marking for American Watch Co. A.W.Co. Nickel: A.W.Co. Nickel Nickel Alloy 1883GHR, 1888OY, 1889BAM, 1890BA, 1890SFM, 1890AP, 1891RR, 1891SAC, 1892BAC
Watch Case Marking for American Watch Co. A.W.Co. Sterling Silver: Am. Watch Co. Waltham, Mass Warranted Sterling Silver Star A.W.Co. Sterling Eagle AMerican Waltham Watch Co. Sterling A.W.W.Co. Waltham Sterling A.W.Co. Sterling Silver Silver 1880NHW, 1880GHR, 1883GHR, 1884LSS, 1888OY, 1888BA, 1889EVR
Watch Case Marking for American Watch Co. Century: Century A.W.W.Co. Pat. Apr. 22. 79. Waltham Century Silver-Filled 100-Years 1883UNK, 1890AP, 1890OY, 1890BA, 1892BAC, 1893SAC
Watch Case Marking for American Watch Co. OHara Dust Proof: A.W.Co. O'Hara Dust Proof Pat. Dec.9.84 Coin Embossed OHara Dust Proof Coin Silver
Orleans Coin Silver 1889BAM, 1890SFM
Pioneer Silver 1888OY, 1889BAM, 1890BA, 1890AP, 1890OY, 1890SFM, 1891SAC, 1892BAC, 1893SAC
Reflector Silver 1888OY, 1889BAM, 1890AP, 1890SFM, 1893SAC

Company Case Trademarks & Hallmarks