Stainless steel case 39 mm case with screw in tempered mineral glass "see through" case back and double o-ring crown
Water resistant to 100 meters (10 atm)
Highly scratch resistant sapphire glass crystal
Automatic mechanical Swiss ETA 2824 25 jewel movement with shock absorber.The ETA uses Incabloc shock resistance, a method developed in the 1930’s to allow the end jewels on the balance staff to move or ‘float’ so the balance is not damaged when the watch is dropped or bumped.The ETA’s second hand stops when the stem is pulled for setting the time. A feature called hacking. Handy for synchronizing watches like in the war movies, or setting the watch with a standard clock like WWV. ETA uses the newer direct second hand drive. The ETA utilizes a ball bearing rotor that winds in both directions it takes less wrist movement to wind the mainspring. Power reserve is the number of hours a movement will run when fully wound. Most mainsprings will power a watch for 30 hours or more. The ETA has about a 40 hour power reserve,The ETA has 25 Jewels . Jewels, typically synthetic rubies are used in watch movements, not to add to their value, but to reduce friction and wear on moving parts. Lower end watches may have only 7 to 15 jewels. The standard for quality watches is 17 jewels or more. There is an upper end to the number of jewels necessary, typically, anything over 25 jewels for these types of automatic movements are just for decoration. Beats per hour. ETA 2824-2 28,800 BPH or 8 beats per second (4 Hz).
Smooth stitchless black calfskin with signature buckle (lug width 19 mm)