Movement: Manually Wound Mechanical Jacob & Co. Caliber JCCM01; Casing Diameter: 131⁄2’’’ i.e. 30.40mm; Height: 5.80mm; Power Reserve: 50-Hours; Frequency: 28’800 vib/h (4 Hz); Jew- els: 18 Jewels; System: Glucydur Balance Wheel; Anti-shock; Finishing: Côtes de Genève, Circular Graining and Vertical Satin Finished; “Jacob & Co.” logo and lettering.
Functions: Hours, Minutes; Big Date; Power Reserve Indication.
Case: Diameter: 42mm; Thickness: 13.5mm; Material: Steel; Finishing: Crown with Engraved and Micro-blasted Jacob & Co. Logo; Crystal: Sapphire with Anti-reflective Treatment; Water resistance: 50m.
Dial: Black Dial with Guilloché; Polished Applied Jacob & Co. Logo and Hour Makers; Satin Finished and Polished Minutes and Power Reserve Rings; Large Date at 12 O’clock, Power-reserve Indication at 6 O’Clock; Hands: Polished Dauphine Hands.