Sentimental?

Ok, so it's his biorthday soon...ish
July
And he asks for something sentimental...not flashy...
what would be sentimental...he said like jewellery but not expensive...
he only said jewellery because I have had this bracelet since we first started...

seeing eachother...
and helpful ideas would be gratefully appreciated..
xxx

there are chain necklaces that are not expensive...get him one he can wear with one or two of his dress shirts