Pure technology, the LACO Chronograph leaves nothing to be desired. Day and date display, minute and hour counters, central second hand counter, and even a running sub-second dial. Naturally this watch features typical LACO refinements such as a domed, anti-reflective sapphire crystal and a 5 ATM water resistance. In the dark, the dial glows the numbers are black printed. A sapphire crystal on the back of the watch provides a view of its automatic movement. When fully wound, the watch has a power reserve of 40 hours. MOVEMENT: Automatic chronograph Laco 50 basic movement ETA 7750 CASE: Stainless steel case, domed sapphire crystal, sapphire display back DIAL: Face with Superluminova C3 HANDS: black STRAP: Black calf leather strap with white stitching DIAMETER: 44,0 mm HEIGHT: 16,0 mm LUG WIDTH: 22,0 mm LUG TO LUG: 50,0 mm WATERPROOF: up to 5 ATM WEIGHT: 128,5 g (incl. strap) ARM CIRCUMFERENCE: 16 - 21 cm Made in Germany