Wristwatch with large date display has indexing member which increments disc by two or more indexing teeth

摘要

The wristwatch has two concentric discs (101,102) both having numbers, the lower disc (101) having data numbers viewed through a window in the upper disc (102). At least two indexing teeth (1...15,16...31) are provided for each division of the date numbers on at least one of the discs. An indexing member (110) is movable to increment the disc (101,102) by the two indexing teeth. Independent claims are also included for the following: (i) a wristwatch; and (ii) the use of a watch mechanism for a wristwatch.