Recently purchased a 4006-7020. Still en route, but it has a terrible looking bracelet. I have been searching to no avail to find a nice Seiko bracelet. Finally got fed up and purchased an Uncle Seiko beads of rice (I know, it doesn't fit) Here is my justification. I bought the BoR that fits the SKX013 with plans to size and hopefully adjust the end links to fit. SKX has 37mm case, 4006 has 37mm (I've also seen it stated at 38mm) lug to lug is listed as 43mm for both. If anyone has done a similar MOD and wants to chime in on its miraculous outcome or devastating failure please do. I may have jumped the gun here.