Overview Reviews Product Description Crystal for Seiko case numbers: V401-5600, V401-5590, V401-5101, V401-5109-V401-510A, V401-5228 Product Videos Custom Field Product Reviews Write a Review Write a Review × Seiko Crystal for Seiko K00A23J20A Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *