Overview Reviews Product Description Crystal for Seiko part # RE9N53JE40 case #s H449-5310, H449-5339 Product Videos Custom Field Product Reviews Write a Review Write a Review × Seiko Crystal for Seiko RE9N53JE40 H449-5270 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *