You may notice that the crown is also in a different position on mine then in the pic .
Hamilton Electrics positioned the crown in various positions from 1 to 5 o'clock using the same 500 and 505 Electric movements .
Vintage pre-quartz Hamilton Electric Taurus...505 Movement.....This one is a front loader .
My dial is a little different then the one pictured in Rene Rondeau's book , "Hamilton Wristwatches , A Collectors Guide .
Being a fan of Hamiltons , I have a few of the Electric models . I love the asymmetrical design of the watches of this period .
Try giving it a wind of about 10 clicks or so after the watch settled down. I suspect the bridle might be binding on the barrel wall. If it's not that then it's lubrication. Seikos tend to be overoiled out of the box. Can't see any other reason it takes 15 minutes to stabilize.