Christopher Ward C1 Jump Hour Mk VvsSartory Billard SB10

The Christopher Ward C1 Jump Hour Mk V is praised for its proprietary JJ01 jumping hour complication and multi-level dial design featuring a floating sapphire dial with a lumed jump hour aperture. Reviewers note the 39mm stainless steel case's mix of brushed and polished finishes, with a polished bezel and brushed midcase. The dial's radially grooved center and sapphire minute track with a lumed underside enhance legibility, and the Super-LumiNova execution is described as an eye-catcher. The watch is powered by the JJ01 module atop a Sellita SW200-1 movement, offering a 38-hour power reserve. Accuracy is rated at approximately ±20 seconds per day. Some owners express concerns about the watch's 14mm thickness. Overall, owners and reviewers appreciate the unique dial execution and complication at its price point.

The Sartory Billard SB10 features a unique jumping hour and perimeter hour ring design, with functional grater plates that are not practical for actual grating due to a blocked-off side. Owners note the absence of a seconds hand, minute tick marks, and a conventional crystal. On balance, owners appreciate the unique design elements of the Sartory Billard SB10, despite its impractical features.