A timekeeping apparatus having a hidden compartment. The compartment can contain permanent or removable psychological message and/or printed messages. The messages can be printed messages, digital messages, recordable audio messages and aromatic messages. The compartment can also contain such items has a mood sensing stone which changes color according to the wearer's mood, magnets or crystals.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a divisional application Ser. No. 09/630,056, filed on Aug. 1, 2000 U.S. Pat. No. 6,618,328.
The invention relates to a watch housing comprising a body made in two parts (2, 3), connected one to the other. The one of the two parts (2) guarantees the function of a watch whilst the second part (3), connected to the bracelet, comprises means for attachment of an interchangeable module (M). Said module (M) is extended by an elastic tongue (20) and security means are provided to ensure that the tongue (20) is supported on the first part (2) whilst subjecting the above to a permanent force maintaining the same in the open position.