Slightly less accurate version of 550002 using the same 550 movement, rated at +-15 sec/month. Available in Stainless steel or gold plated, and with Tiger eye dial or painted.
Mentioned in the 1 August 1973 edition of the Japan Times newspaper, that Ricoh will start selling in late August of 1973.
Cal 550
Case number | Movement number | Case material | Dial | Notes |
133303 | Stainless steel | Two tone silver without stone | ||
133452 | ? | Stainless steel | Plain white | |
133615 | Stainless steel | Plain white without stone | Dated Aug 1972 | |
133793 | 014425 | Stainless steel | Two tone silver without stone | |
133980 | ? | Stainless steel | Plain white | |
134087 | ? | Stainless steel | Black & silver stripe | |
134197 | ? | Stainless steel | Tiger eye | |
134453 | ? | Stainless steel | Brown fade without stone | |
333216 | ? | Gold plated | Tiger eye | |
333243 | ? | Gold plated | Tiger eye | |
333285 | ? | Gold plated | Green stone signed Tiger eye |