Seiko D229-5020 Watch Guide The Seiko D229-5020 is a watch model based on the D229 movement.Parts ListES2W79LN00crystal50M43NS1crownFH2930B0Bcase back gasketAE236BZA1case back gasketOther models with the same movementD229-5000D229-5010D229-502AD229-5030D229-503A