In Chinese custom, it is inappropriate to give clock....

[scott833]

1) In Chinese custom, it is inappropriate to give clock or watch to elderly. Clock and watches symbolizes death, so it will be offensive to the receiver.
2) In Chinese custom it is rude and offensive to give watch or clock as gift to elderly as they symbolizes death and funeral.

[LiuJing]

Without proper articles, both sentences sound odd to me.

[Rover_KE]

1) According to Chinese custom, it is inappropriate to give clocks or watches to the elderly. They symbolise death, so the gift would be offensive to the receiver.

2) In Chinese folklore it is insensitive and offensive to give a watch or clock as a gift to the elderly as they symbolise death and funerals.

Rover