The later 550 watch, stainless steel only so far recorded.
Second digit "2"
| Case number | Movement number | Case | Dial | Dated | Notes |
| 325941 | 015239 | Stainless steel | Gloss black dial | Restored in Japan iishop.co.jp - YouTube | |
| 622994 | Stainless steel | Brown fade | |||
| 822256 | Stainless steel | Two tone silver dial | |||
| 822793 | 018308 | Stainless steel | Blue dial without stone | ||
| 822973 | Stainless steel | Blue without stone | |||
| 823449 | Stainless steel | Brown fade | |||
| 823647 | Stainless steel | Brushed silver dial | |||
| 825712 | Stainless steel | Two tone silver dial | |||
| 825829 | Stainless steel | Blue black dial | |||
| ?????? | Stainless steel | Two tone silver with stone | |||
| ?????? | Stainless steel | Blue dial | |||
| 11 watches recorded |