Bulova 1954 Arden

I haven't yet found a similar enough match for this one. L4 on the case back and movement suggest 1954.  10k rolled gold plated bezel, stainless steel back marked Bulova New York. 17 Jewels, unadjusted Swiss movement 6BL. On the bottom left of the movement is a stamp that is difficult to make out even with a loupe. The first character appears to be smudged or is possibly a squared off B, the other two are a fairly plain XW. Works very well as is. The band is a Speidle.