The 13mm thick case, dial, and movement are all signed. There is a date aperture window between 4 and 5 o'clock, it has a 50-hour power reserve at full winding, and it's water resistant to 50 meters/165 feet. It includes three recesses black subsidiary dials with luminous white Arabic numerals, markers, and indicator hands, including a small constant running seconds register at 9 o'clock, a 12-hour chronograph totalizer at 6 o'clock, and there is 30-minute chronograph counter at the 3 o'clock position.

There is a black perimeter ring with a white tachymeter scale to 500 UPH. It has polished steel delta hour and minute hands with luminous tips and a red center sweep chronograph seconds hand with a rectangular indicator with a luminous insert and a needle tip. It has a white-lacquered dial with faceted applied rectangular hour markers with luminous inserts around a black ¼ second/minute chronograph scale. The 37mm diameter barrel-shaped three-body solid case, straight lugs, and flat angled tonneau-shaped bezel, are brushed/polished. It includes an oversize signed winding crown, round chronograph push buttons, and a screw down exhibition sapphire display crystal case back engraved with '50TH ANNIVERSARY EDITION – 1969-2019 – 50M,' and with the Zenith signature on the skeletonized rotor showing through the crystal. It has a stainless-steel 'ladder' bracelet with a steel deployant clasp and a scratch resistant sapphire crystal.

This is a stainless steel Zenith Chronomaster El Primero Revival A384 50th Anniversary 1969 Edition 03.A384.400/21.M384. More about El Primero A384 Revival SS / Ladder Bracelet

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