Found email addresses for Youngsun:
Found phone for Youngsun:
Jul 2018 - Current
Dec 2014 - Jun 2018
Nov 2010 - Dec 2012
Youngsun holds Rolex Geneva | Level 50 Watchmaking Accreditation and WOSTEP Certification (3,000 Hours) certifications.
WOSTEP program at Nicolas G. Hayek Watchmaking School US
Adv.Diploma at Melbourne Polytechnic
Bachelor of Arts - BA at Korea National Open University
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