IAS, IRCA’nın onaylı eğitim ortağı olan EAS ile birlikte Türkiye’nin tüm büyük şehirlerinde baş denetçi eğitimi vermektedir. IAS tarafından yürütülen ISO baş denetçi eğitimi, yönetim sistemlerinin denetlenmesi için ISO 19011:2018 Kılavuzları tarafından tanımlanan

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With that background, the Lange 1 Perpetual Calendar warmly in 2020. As link Langepedia explains, designers had first tried to adapt a perpetual calendar mechanism to the Lange 1 design in the early 2000s but had trouble link fitting the complications into the Lange 1's layout while still honoring its steadfast application of the golden ratio and separating each indication. There was also the matter of switching that link big date display at the end of each month.

Redesigned for its 10th anniversary, link the Parisian trunk-maker's watch collection features new references, in gold or platinum, of three-hand watches link driven link by an automatic movement manufactured in Geneva.