I like the "seconds spinner" in the A5 clock, but wanted a little more resolution. Here's the resulting code:
byte segs1[] = { 15, 15, 16, 16, 5, 5, 17, 17, 8, 8, 9, 9, 4, 4, 14, 14}; // wbp
byte segs2[] = { 0, 16, 0, 5, 0, 17, 0, 8, 0, 9, 0, 4, 0, 14, 0, 15}; // wbp
temp1 = segs1[(SecNow*4)/15]; // wbp
temp2 = segs2[(SecNow*4)/15]; // wbp
a5loadOSB_Segment (temp1, a5_brightLevel); // wbp
if (temp2 > 0) // wbp
a5loadOSB_Segment (temp2, a5_brightLevel); // wbp