✅ SOLVED Brass swivel piece?

[USNFLYR]

Found this in a civil camp. Dainty small loop at top and bottom has design to swivel and hold a larger piece. Originally I thought this would have held a time piece or locket, but the thin loop appears to have been too fragile to support a heavy item. Any help from the forum in identifying this would be greatly appreciated!

 

[DCMatt]

It's a CW period watch winder. Nice find!

 

[USNFLYR]

Thanks DC Matt. I really appreciate the way you jumped onboard this quest to solve this riddle! Keep up the good work.........