The ref. 1133B as pictured here was available from 1970 to 1974; it was preceded by the 1133B with Chronomatic dial and a transitional model, both only available with caliber 11.
|Material: ||Stainless steel|
|Diameter: ||39.00 mm|
|W/R: ||100.00 m|
|Indexes: ||Stick / Dot|
Updated version of caliber 11. Notable changes include the creeping date change (already found on the -1 versions of the former) and the updated frequency.