Universal Cycles lists the Tange Levin with a 27.0 crown race:
Universal Cycles -- Tange Levin CDS Threaded Headset 1"
As others have said, it'll last as long as a Chris King, it just doesn't have the bling factor of a King. FWIW, Universal Cycles also sells King headsets:
Universal Cycles -- Chris King Gripnut Headset - 1 Inch
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Jeff Wills
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