Hong Kong Enterprise; Oct. 1990; p. 109; Watches #1306-7221B & 1306-7221A bottom of page. |
"Sporte Analogue Depth Meter T-548 and T-549" created by Citizen Corp., described on p. 3 of the Brand News Brochure from May 1993 to Jun. 1993 published by Citizen Corp., in Apr. 1993. |
"Promaster Analogue Depth Meter V-525 and V-526" created by Citizen Corp., described on p. 2 of the Brand News Brochure from Jul. 1994 to Aug. 1994 published by Citizen Corp., in Jun. 1994. |
"Promaster Analogue Depth Meter V-501" created by Citizen Corp., described on p. 84 of the Citizen Watch Catalog published by Citizen Corp. in Jun. 1994. |