Filter
Top Products
English
4
◆ Your SEIKO Automatic Diver’s Watch uses promethium-147 as the active ingredient in the
luminous paint.
The use of radioactive materials such as promethium-147 is strictly regulated by
Japanese Law and monitored by the Japanese Science and Technology Agency. SEIKO
luminous watches, manufactured in accordance with the law, contain an approved
amount of promethium-147 harmless to human beings. The amount of radiation they
emit also conforms to the standards specified by the US Nuclear Regulatory Commission.
NOTE: Japanese regulations on the use of radioactive materials enforced by the Japanese
Science and Technology Agency are equivalent to or even stricter than similar
regulations of the IAEA and ISO.
REMARKS ON LUMINOUS PAINT
FEATURES
200 METER WATER RESISTANCE
● Suitable for scuba diving
ROTATING BEZEL
● Elapsed time measurement during
diving (up to 60 minutes)
SCREW DOWN CROWN
TIME/CALENDAR
● Hour, minute & second hands
● Date
● Day