Citizen Watch Strap Black Leather 22 MM White Stitching Part # 59-S51438S (BUTTERFLY CLASP). This item has been DISCONTINUED by the manufacturer. This item fits the following timepiece(s): AT0550-03A, AT0550-03E, H500M-S049628, 4-S052394, BT0050-09A, 4-S047234, BT0010-03A, H500-S054532, AT0555-00A, AT0555-00E, AT0556-07A, AT0556-07E