This is our second time zone function. Integrated into the GMT-Master II’s calibre 3285, it enables the simultaneous display of local time in a 12-hour format and a second time zone in a 24-hour format. Each can be set independently via the winding crown. The mechanism controlling local time comprises a minimal number of components, ensuring utmost simplicity and ease of use. Its two key elements – a four-toothed star wheel and a patented jumping spring – ensure precise, hour-by-hour shifts. The system is so reliable, wearers can adjust it whenever they wish, all the while staying constantly connected to home time.
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