Finally, the In-House Movement the Royal Oak 37mm Deserves
Audemars Piguet has finally unveiled something collectors have long anticipated: the Caliber 7138. This brand-new in-house movement is set to replace the Caliber 3120, which has powered the 37mm Royal Oak for nearly two decades. Previously, the Royal Oak 37mm relied on the trusted Caliber 5900. But now, the Caliber 7138 brings a series of […]
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