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The OPTI Clock Attachment features moving hour, minute and second hands. A back-up battery and 'real time'* memory ensure that the OPTI Clock Attachment keeps accurate time, for up to 10 years, during periods when the projector is switched off.
The OPTI Clock Attachment can be supplied forward or backward running. The latter is mostly used, with a correctly orientated face, for rear projector onto a screen viewed from the front or when the image is front projected via a mirror. *When you switch the projector back on the clock will re-set itself to the correct time.
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