Corum Lab 01 Damascus Steel Green Z410/03954 – 410.100.43/F371 AV01. 39.89 x 55.00 mm black Damascus black DLC steel. Green and gray dial with hours and minutes functions. Automatic Swiss made movement caliber CO 410, 27 jewels, power reserve of 50 hours. Black rubber strap with triple folding buckle. Water resistance 50m.