New aftermarket tube for Breitling with internal thread for ref. A49350,A13356,13364,A44359,A44360,A13320,A23320,A13371,B0190,A17320,A17321,AB0110,AB0111,AB0113,AB0115,AB0116,AB0420,AB3510,A13312,AB2020,IB2020,AB0410,AB0412,AB0413,MB0413 Excellent fitted with Breitling crown. As you know in these models tube soldered inside case.You will need cut off the old tube and fit new one with loctite. Watch will be waterproof with this tube if everything done correctly. Please find here sizes of tube Crown tube diameter 2,9mm Case tube diameter   2,8mm

Overall length            4,85mm Excellent quality Swiss made