Tiger also made a Double Dragon Watch (I'm sure the game play is different)
(Thanks to Paul for the pic):
Tiger Double Dragon (Handheld and watch) (1989, LCD, 2 AA Batteries, Model# 7-780)
Based on Taito's Double Dragon arcade game. You have 3 lives to save Marian in 4 missions of increasing difficulty.
Tiger also made a Double Dragon Watch (I'm sure the game play is different)
(Thanks to Paul for the pic):
Do I have this? No.