Watch 14 KT Yellow Gold
Hadley clasps 12 KT
Triangle on movement with the number 20 inside
Rubaiyat
Really got to love how Bulova did things back during this period.
Watch is a nice match to the 1919 Rubaiyat I posted a few months ago with these case markings
Note the big difference in seral number and the lack of the globe and 'American Standard' stamps.
Dial looks the sme, case is slightly different (front bezel engraving) and different movement (Rubaiyat v Bulova). This might yet be another example showing Bulova's progression into using their own branded movements.
Model wise Bulova Lady Maxim...year wise 1921/22.
Dating may come down to the movements and not the case. Bulova manufactured the cases in the US in 1919, but didn't stamp them stamped with serial number until such time of assembly with the movement.
Just thinking out aloud.