The American Waltham Watch Co. produced reliable jeweled movements often retailed under private-label signatures. This example was sold by Anna L. Silveira, San Francisco, one of the few documented female jewelers of the period. The case is sterling silver, open face, 16 size, with plain back and polished finish. Period T-bar style “Albo Silver” (nickel silver) chain with swivel, possibly likely set with bloodstone on one side and carnelian on other.The movement is a stem-wind, lever-set Waltham, gilt finish, safety pinion, numbered 1635030. The dial is porcelain with Arabic numerals, subsidiary seconds, gilt flourishes, and blued spade hands, signed Anna L. Silveira, San Francisco.Pickup & Shipping: Free Sacramento pickup. Shipping via FedEx within the continental U.S. for $50 + 1.5% insurance (unless waived in writing). Combined lot shipping available. Currently running but untested for accuracy. Case with light wear and tarnish consistent with age. Dial with minor hairlines. Chain with surface wear. Swivel fob stones with scratches and a chip. Overall a collectible California private-label Waltham with original sterling silver case, chain.