completely stainless steel CASE SIZE 19.5mm x 30mm Total length 19.3 cm, suitable for arm circumference max. 18.5cm Year of manufacture approximately 1995 - 1999 Notes on battery disposal As an end user, you are legally obliged to return used batteries. You can return old batteries that we have or have had in our range as new batteries to our shipping warehouse (shipping address) free of charge. The symbols shown on the batteries have the following meaning: The symbol of the crossed-out garbage can means that the battery must not be disposed of in household waste. Pb = Battery contains more than 0.004 percent lead by weight Cd = Battery contains more than 0.002 percent cadmium by weight Hg = Battery contains more than 0.0005 percent mercury by weight. Please note the above informatio.