Winter poses several inquiries to the watch wearer — practical, sartorial and sometimes technological questions. Similar to the ref. 6536 above, it had been readily available in both chronometer and non-chronometer variants, but this was The very first time the COSC watches in fact experienced the 'Officially Licensed Chronometer' textual https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/