Brands
- Sekonda
- Sentis
- Sergio Bustamante
- Serica
- Seth Thomas
- Settle Brothers
- Sheaffer
- Sheffield
- Sheffield Silver Co
- Shell
- Shelley
- Shelton-Ware, NYC
- Sheridan
- Sherman
- Shorter
- SIAM
- Sicura
- Silea
- Silpada
- Silver Charm
- Simmons
- Simons Bros
- Simons Brothers
- Simpson
- Simpson Hall Miller & Co
- SIMPSON, HALL, MILLER & CO
- Sinn
- Sinn Spezialuhren
- Smartset
- Smith & Wesson
- Smith Patterson & Co
- Smiths