POTENS PRIMA AMERICAN AIRLINES DIVER – Vintage Swiss hand-wound chronograph watch, Cal. Landeron 248, Ref. AA 1345, SCREW-DOWN CROWN. Dimensions: 40 mm without crown and 43 mm with crown. Good condition, although with natural wear due to age and use. COLLECTORS Brand: Potens Model: AMERICAN AIRLINES Ref. 1345 Genre: Men's Movement: Manual Winding Caliber: Landeron 248 Case material: Stainless Steel Diameter without crown: 40 mm Diameter with crown: 43 mm Lug to Lug: 47 mm Inside Lug Width: 19 mm Band material: Leather Decade: 60s Production: Fine Box: No Papers: No Working: Yes