CASE/CALIBER REFERENCES BEGINNING WITH SEK CS#5Y30-700
SEK CS#5Y30-7000	SKO CS REF:30MA6NA1 IS MOST POPULAR CROWN
SEK CS#5Y30-7009	SEIKO CASE
SEK CS#5Y30-700A	SEIKO CASE REFERENCE COSERVE 2003/2004
SEK CS#5Y30-700C	SEIKO CASE 08/12/98