Vintage Bulova case backs are often rich in identifying information. Common markings include the Bulova name or logo, the date code, model name (Bulova used distinctive model names for many of their watches), case material information, and patent numbers. The case material markings are particularly important for vintage pieces, as Bulova used various case materials including gold-filled, rolled gold plate, stainless steel, and solid gold, each with specific stampings.
The style of the Bulova name and logo on the case back has evolved over the decades, and comparing the logo to known examples from specific eras can help verify the date code. Some vintage Bulova watches also feature the Accutron tuning fork logo for models using that technology. The placement and style of case back markings can vary by era, with earlier watches often featuring more ornate engraving and later models using more standardized stamping.
Modern Bulova case backs typically display the brand name, model reference number, water resistance rating, case material, and country of origin. Some models feature exhibition case backs or commemorative engravings, particularly limited editions and models in the Accutron heritage line. As with all vintage watches, case back markings should be assessed alongside the movement and dial for comprehensive authentication, as cases were sometimes swapped or refinished.