Time+Tide
COSC unveils stricter new “Excellence Chronometer” standard + A. Lange & Söhne opens new Chicago boutique
For the 50th anniversary of the 3159 standard, COSC has introduced a stricter new "Excellence Chronometer" tier of certification.The post COSC unveils stricter new “Excellence Chronometer” standard + A. Lange & Söhne opens new Chicago boutique appeared first on Time+Tide Watches.