Seiko 4006 Bell Matic parts. Please select the correct part for your watch, below are the interchangeable case numbers for these parts: We have additional parts on our stock for this caliber. If you don't find the part you need, please e-mail us and we will check our stock. All parts listed will fit Seiko 4006 watches except crowns which they made 2 different models 55W and 55M We only have the 55M series in stock which fits the following cases: 4006-6002 4006-6011 4006-6014 4006-6021 4006-6027 4006-6031 4006-6036 4006-60374006-60394006-6040 4006-6041 4006-6049 4006-6050 4006-6059 4006-6060 4006-6061 4006-6070 4006-6071 4006-6080 4006-6081 4006-6089 4006-7002 4006-7004 4006-7005 4006-70124006-70204006-7021 4006-7022 4006-70254006-70284006-7029 Dial part numbers are the same as the case number, please make sure that you have the correct case number before purchasing the dial