I would take the refund 100%, forget this IWC watch, it is an overpriced POS with many, many threads about how poor it is....
Underlying problems have been:
Bad lume, bad marker placement, cheap strap, poor top gun engraving, and a much higher than average A7750 failure rate than any other standard 7750 layout watch....
All for the princely sum of over $500
When you consider the small numbers sold so far, those facts are even more worrying. I think The Zigmeister is going to be very familiar with this watch in the coming months