The reference CK2077 is the Waterproof variant of the 33.3 range and this is one of the most desirable 2077's! Why? First of all it's an early case variant with the rarer engraved caseback from approx. 1943. Second the dial on this example is unique... the white dial has a red Pulsations scale and silver inner seconds track. The numerals are gold, matching the hands. A stunning elegant but at the same time sporty look fitting with a toolwatch like this. Movement is the Cal 33.3 which is working perfectly. Attached is a new GF style bracelet. Truly one of the better 2077's which looks even better in real life!!!