Lange 1 Timezone in 18K white gold. Measuring at 41.9mm in diameter, 11mm in thickness compared to 9.8mm of standard Lange 1. So what’s the result of slightly added thickness? A secondary timezone, as well as the worldtime function. The case construction is that of the classic Lange. Great mixture of polished and brushed finish as well as the typical Lange styled Lugs. The lugs are ever so slightly more curved at the end than that of the original Lange 1, which allows for the watch to hug the wrist better with a bigger case size. The dial is well organized, functional with the same Lange 1 DNA dial. Lange have utlised the space on the dial well with the addition of a world time disc, secondary timezone as well as 24 hour indicator, while remaining that symmetrical asymmetrical look of the classic Lange 1 featuring off centered time, date, and power reserve. Unlike the original Lange 1, this timezone features an additional pusher at 8 o’clock, which is to adjust the secondary timezone as well as worldtime disk. Similar to that of Patek's worldtime function, this allows for quick and easy change in time when travelling. The movement caliber L141.1 features the same base movement of the original Lange 1’s L901 caliber, but with additional 52 parts adds a secondary timezone and a worldtime function. The overall condition of the watch is excellent without little to no signs of wear, and the watch comes as a full set (Box, Papers, Factory Lange strap) with addition of handmade travel pouch from Gobugi, as well as a leather strap made by us.