Antique 16 Size Wadsworth Bunn Special Open Face Pocket Watch Case 14k White GF. Item: Pocket Watch Case Brand: Wadsworth Model: Bunn Special Case Material: 14k White GF Gender: Men’s. Inside Diameter: 43.8mm Outside Diameter: 50.5mm. Ok, overall condition for its age. There is plating wear through and scratches on the case. It is missing the crystal. The crown is worn.