Antique B&B Royal 3/0-size gold-filled wristwatch case, featuring an attractive engraved bezel and fixed wire lugs. The inside case back is stamped: 3/0 B&B ROYAL 20 YEARS 654923 The “20 Years” marking identifies this as a period gold-filled case rather than solid gold. Details: Movement size: 3/0 Maker/brand: B&B Royal Gold-filled – 20-year guarantee Approx. Diameter: 31-32 mm, excluding crown/lugs Weight: 8.6 grams as pictured Ornately engraved bezel Fixed wire lugs Hinged back Crystal present Serial no. 654923 Case only – no movement, dial, crown/stem, hands or strap Shows age-appropriate scratches, patina, plating/finish wear and wear to the crystal. Please use the photographs as the primary condition reference. An attractive early American gold-filled wristwatch/trench-watch case suitable for restoration, parts, or a period watch project.