Omegafanman
·Modern wrist locket
Hinged cover made from military buttons.
https://www.etsy.com/listing/704034274/stainless-steel-button-wrist-locket?gpla=1&gao=1&&utm_source=bing&utm_medium=cpc&utm_campaign=shopping_us_b-jewelry-bracelets-cuff_bracelets&utm_custom1=6d6b8fd1-119b-43a9-81df-43322aab4334&utm_content=bing_319895461_1305120450893305_81570054476090_pla-4585169648600784:aud-805670569😜la-4585169648600784_c__704034274&utm_custom2=319895461&msclkid=51b7d821409413f6f6da87a3adb71b1d
Being sad I got old of an original RAF belt buckle for scale … from the pictures I would say the right wrist case is only about 21mm dia - so a locket / lucky charm - maybe a memento from his late Mother is the most probable I think. I something like a CK1219 or a UK2292 on his left wrist but impossible to be sure. Both probably ended up buried with him.