Pocket Watch Database

Keystone Watch Case Co.

Location: Philadelphia, Riverside, New Jersey

Years of Operation: 1875-1956

American Case Trademarks & Hallmarks

Crown 14 K. Filled (Keystone Watch Case Co.)
Keystone Watch Case Co.
Trademark Issued:
November 13, 1900

Gold-Filled

14K Gold-Filled

Crown 10 K. Filled (Keystone Watch Case Co.)
Keystone Watch Case Co.
Trademark Issued:
November 13, 1900

Gold-Filled

10K Gold-Filled

Imperial (Keystone Watch Case Co.)
Keystone Watch Case Co.
5 Yr. Gold-Filled

Peer (Keystone Watch Case Co.)
Keystone Watch Case Co.
Trademark Issued:
September 15, 1914

15 Yr. Gold-Filled

Perfection (Keystone Watch Case Co.)
Keystone Watch Case Co.
Trademark Issued:
February 06, 1906

Electroplated

Planet (Keystone Watch Case Co.)
Keystone Watch Case Co.
Trademark Issued:
January 31, 1893

20 Yr. Gold-Filled

Premier (Keystone Watch Case Co.)
Keystone Watch Case Co.
5 Yr. Gold-Filled

Princess (Keystone Watch Case Co.)
Keystone Watch Case Co.
25 Yr. Gold-Filled

Regal B&B (Keystone Watch Case Co.)
Keystone Watch Case Co.
10 Yr. Gold-Filled

Royal B&B (Keystone Watch Case Co.)
Keystone Watch Case Co.
20 Yr. Gold-Filled

Victory (Keystone Watch Case Co.)
Keystone Watch Case Co.
Trademark Issued:
January 01, 1901

10 Yr. Gold-Filled

Winner (Keystone Watch Case Co.)
Keystone Watch Case Co.
10 Yr. Gold-Filled

[Crown and Scales] (Keystone Watch Case Co.)
Keystone Watch Case Co.
Trademark Issued:
August 08, 1911

Gold-Filled

14K Gold-Filled

[Scales] (Keystone Watch Case Co.)
Keystone Watch Case Co.
Gold-Filled

10K Gold-Filled

C (Keystone Watch Case Co.)
Keystone Watch Case Co.
C
Trademark Issued:
July 01, 1902

Rolled Gold

Crown
[Crown] (Keystone Watch Case Co.)
Keystone Watch Case Co.
Trademark Issued:
November 13, 1900

25 Yr. Gold-Filled