The watch Arun gave me!

Digital watches need two or three pairs of digits zero through nine and a separator, usually a colon realized as separate segments. Watches supporting 12-hour mode also need an AM/PM indicator, which can be as easy as a dot segment lit or not. Seconds may use smaller segments.

Indo-arabic digits
1 2 3 4 5 6 7 8 9 0
7-segment bc 7-segment abdeg 7-segment abcdg 7-segment bcfg 7-segment acdfg 7-segment acdefg 7-segment abcf 7-segment abcdefg 7-segment abcdfg 7-segment abcdef

Calendar function Edit

If they shall also display the date, with month or weekday names (abbreviated) in English, they also need to support several letters.

English month names
Month UPPER Initial Uni/Adhoc
January 7-segment bcd7-segment abcefg7-segment abcef 7-segment bcd7-segment abcdeg7-segment ceg 7-segment bcd7-segment abcefg7-segment abcef
February 7-segment aefg7-segment adefg7-segment abcdefg 7-segment aefg7-segment abdefg7-segment cdefg 7-segment aefg7-segment adefg7-segment cdefg
March 7-segment abdf7-segment abcefg7-segment abdefg 7-segment abdf7-segment abcdeg7-segment eg 7-segment abcef7-segment abcefg7-segment aef
April 7-segment abcefg7-segment abefg7-segment abdefg 7-segment abcefg7-segment abefg7-segment eg 7-segment abcefg7-segment abefg7-segment aef
May 7-segment abdf7-segment abcefg7-segment bcfg 7-segment abdf7-segment abcdeg7-segment bcdfg 7-segment abcef7-segment abcefg7-segment abcdfg
June 7-segment bcd7-segment bcdef7-segment abcef 7-segment bcd7-segment cde7-segment ceg 7-segment bcd7-segment bcdef7-segment abcef
July 7-segment bcd7-segment bcdef7-segment def 7-segment bcd7-segment cde7-segment ef 7-segment bcd7-segment bcdef7-segment def
August 7-segment abcefg7-segment bcdef7-segment acdef 7-segment abcefg7-segment cde7-segment abcdfg 7-segment abcefg7-segment bcdef7-segment acdef
September 7-segment acdfg7-segment adefg7-segment abefg 7-segment acdfg7-segment abdefg7-segment abefg 7-segment acdfg7-segment adefg7-segment abefg
October 7-segment abcdef7-segment adef7-segment abc 7-segment abcdef7-segment deg7-segment defg 7-segment abcdef7-segment adef7-segment defg
November 7-segment abcef7-segment abcdef7-segment bdf 7-segment abcef7-segment cdeg7-segment bfg 7-segment abcef7-segment abcdef7-segment bcdef
December 7-segment abcdef7-segment adefg7-segment adef 7-segment abcdef7-segment abdefg7-segment deg 7-segment bcdeg7-segment adefg7-segment adef
English day names
Month UPPER Initial Uni/Adhoc
Monday 7-segment abdf7-segment abcdef7-segment abcef 7-segment abdf7-segment cdeg7-segment ceg 7-segment abcef7-segment abcdef7-segment abcef
Tuesday 7-segment abc7-segment bcdef7-segment adefg 7-segment abc7-segment cde7-segment abdefg 7-segment defg7-segment bcdef7-segment adefg
Wednesday 7-segment bcdefg7-segment adefg7-segment abcdef 7-segment bcdefg7-segment abdefg7-segment bcdeg 7-segment bcdef7-segment adefg7-segment bcdeg
Thursday 7-segment abc7-segment bcefg7-segment bcdef 7-segment abc7-segment cefg7-segment cde 7-segment defg7-segment bcefg7-segment bcdef
Friday 7-segment aefg7-segment abdefg7-segment ef 7-segment aefg7-segment eg7-segment ade 7-segment aefg7-segment aef7-segment ade
Saturday 7-segment acdfg7-segment abcefg7-segment abc 7-segment acdfg7-segment abcdeg7-segment defg 7-segment acdfg7-segment abcefg7-segment defg
Sunday 7-segment acdfg7-segment bcdef7-segment abcef 7-segment acdfg7-segment cde7-segment ceg 7-segment acdfg7-segment bcdef7-segment abcef