Bought myself a Citizen Wingman many years ago and must admit to being disappointed with it
No light
No half hour timezones
Wizz wheel bezel completely useless -- too small (terrible accuracy) and cannot rotate to see the answer you want
V.poor backup from Citizen Australia.
Some newer Wingmans can be 'tricked' to show 1/2 hr zones, but I believe it affects their functionality in other areas.
Saw a neat Casio "World Timer" in Cairns the other day that looks the goods but. Backlight when you need it, ALL the world timezones, (inc Kathmandu and Nepal and ADELAIDE/DARWIN!!) and only a coupla hundred.