1970s IWC Automatic 'Cal. 8541B' (Ref. 1872) Blue "Turler" Co-Signed Dial

Founded more than 150 years ago, the International Watch Company has grown to become one of the most recognizable Swiss watch brands on the planet. And one of the things they're especially famous for is their caliber 85 movement, which is widely regarded as one of the finest watch movements ever made. The cal. 85 was introduced in the 1950s and was the second automatic movement the brand ever made – it was also their first automatic movement with central seconds. That movement went on to birth multiple subsequent versions, including the cal. 852, 853, 854, and finally the 8541B, which beats inside this ref. 1872. 

Featuring a stout 36mm tonneau-style case with a lightly brushed finish and a gorgeous steely blue dial that's also co-signed with Türler, this particular IWC Automatic is simply stunning with a no-nonsense design that makes for a highly reliable daily wearer.

A quick note about Türler: they were a Swiss jeweler established in 1883 by two brothers, Jean Henri and César Alexander Türler. The brothers made a name for themselves by offering their customers the newest and most exclusive Swiss watch brands at the time, including Omega, Longines, IWC, Vacheron Constantin, and Blancpain. After establishing themselves as one of the top retailers in Zurich, Switzerland, and with the prestige the Türler name carried, they started to cosign the dials of some of the watches they offered, not unlike other well-respected retailers at the time. These 20th-century Türler-cosigned watches are now desired by collectors for their rarity and the provenance they carry.