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
"RICOH Ricoh Watch Co., Ltd. Head Office 2-24 Takatake-cho, Higashi-ku, Nagoya 461 (Yokota Building) | Tokyo Office 6-14-6 Ginza, Chuo-ku, Tokyo 104 (Ricoh San-ai Building) def . No 550003 SSW ¥ 59,000 052 ( 931 ) 6185 03 ( 543 ) 3784 His Majesty's great concern for all the people."
1st digit 1 or 3, 2nd digit all 3, 3rd digit 3, 4 or 5
So far all Stainless steel begin with 1, all Gold plated begin with 3332.
Case number | Movement number | Case material | Dial | Date | Notes |
133303 | Stainless steel | Two tone silver without stone | |||
133452 | ? | Stainless steel | Plain white without stone | ||
133615 | Stainless steel | Plain white without stone | Aug 1972 | ||
133793 | 014425 | Stainless steel | Two tone silver without stone | ||
133945 | 020495 | Stainless steel | Tiger eye without stone | Nov 1972 | jrussbeauchamp.com |
133980 | ? | Stainless steel | Plain white | ||
134086 | 016214 | Stainless steel | Fading brown without stone | Oct 1972 | jrussbeauchamp.com |
134087 | ? | Stainless steel | Black & silver stripe | ||
134197 | ? | Stainless steel | Tiger eye without stone | ||
134202 | ? | Stainless steel | Tiger eye without stone | ||
134232 | 016048 | Stainless steel | Plain white without stone | Oct 1972 | jrussbeauchamp.com |
134453 | ? | Stainless steel | Brown fade without stone | ||
135038 | ? | Stainless steel | Tiger eye without stone | ++ | |
135237 | ? | Stainless steel | Tiger eye without stone | ||
333216 | ? | Gold plated | Tiger eye without stone | ||
333243 | ? | Gold plated | Tiger eye | ||
333285 | ? | Gold plated | Green Tiger eye without stone | ||
17 watches recorded |