Manual
Page 1
... In addition, the 600 meter model (Cal. 7549) and 300 meter model (Cal. 7549) are designed for deep-sea diving and has excellent water-resistant quality. It is a product of SEIKO's advanced precision technology. The 600 meter model (Cal. 7549) has been water-tested to a pressure of ...60 atmospheres (600 meters or 2000 ft.), the 300 meter model (Cal. 7549) to a pressure of 15 atmospheres (150 meters or 500 ft.). Hattori & Co., Ltd., and its SEIKO industrial group. Your SEIKO Quartz Diver's Watch is a battery-powered electronic wristwatch, incorporating a quartz crystal oscillator, ...
... In addition, the 600 meter model (Cal. 7549) and 300 meter model (Cal. 7549) are designed for deep-sea diving and has excellent water-resistant quality. It is a product of SEIKO's advanced precision technology. The 600 meter model (Cal. 7549) has been water-tested to a pressure of ...60 atmospheres (600 meters or 2000 ft.), the 300 meter model (Cal. 7549) to a pressure of 15 atmospheres (150 meters or 500 ft.). Hattori & Co., Ltd., and its SEIKO industrial group. Your SEIKO Quartz Diver's Watch is a battery-powered electronic wristwatch, incorporating a quartz crystal oscillator, ...
Manual
Page 8
...With each battery change is inscribed on the case back as shown in your watch should last approximately three years for Cal. 7548, 7549 (U.C.C. 301) or two years for Cal. 2625 (SEIKO TR726SW or SB-DL). BATTERY CHANGE The miniature battery which corresponds to three years (Cal. 7548..., 7549) or two years (Cal. 2625) after the battery has been replaced. Year (1982) IW Each mark of number may be shortened to have the SEIKO SERVICE CENTER inscribe a new "*" mark at the factory, the actual life-...
...With each battery change is inscribed on the case back as shown in your watch should last approximately three years for Cal. 7548, 7549 (U.C.C. 301) or two years for Cal. 2625 (SEIKO TR726SW or SB-DL). BATTERY CHANGE The miniature battery which corresponds to three years (Cal. 7548..., 7549) or two years (Cal. 2625) after the battery has been replaced. Year (1982) IW Each mark of number may be shortened to have the SEIKO SERVICE CENTER inscribe a new "*" mark at the factory, the actual life-...