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Close 100m/330ft Band Material Fabric Color/Finish Black Clasp Deployant Buckle Movement Automatic – Chronometer An automatic/self-winding movement is powered by a thin spiral torsion spring, called the mainspring, which is housed in an enclosed barrel inside the movement. The energy produced from the wound spring drives the movement functions. An automatic watch has a weighted rotor mounted on a pivot to the back of the movement, and the rotor is connect to the mainspring through a series of gears. The natural motion of the wearers wrist will cause the rotor to spin, which in turn will automatically wind the mainspring. Please note: An automatic winding watch which has completely wound-down or is at the end of its power reserve requires manual winding. Manually winding an automatic watch ensures that the watch is at full power-reserve when first worn, and as long as the watch is in motion thereafter it will remain fully wound, ensuring that when the watch is removed it will run the specificed power-reserve duration. Close Complications Chronograph COSC Certified Yes

• Brushed & polished stainless steel case.
• Dial:
• Black dial.
• Tri-color sub-dials.
• Transparent counter for the running seconds
• Polished hour & minute hands with luminous fill.
• Applied polished index hour markers with luminous fill.
• Fine printed minutes/seconds & fractions of a seconds track.
• Small seconds sub-dial at 9 o’clock.
• Chronograph/stopwatch:
• Column wheel mechanism.
• Large red tipped central seconds counter hand. The seconds counter makes a complete revolution in 10 seconds, with a 1/10th of a seconds scale on the dial flange.
• 60 minute counter sub-dial at 6 o’clock.
• 60 seconds counter sub-dial at 3 o’clock.
• Zenith in-house caliberEl Primero 3604, beats at 36,000 vph (5Hz), contains 35 jewels & has an approximate power reserve of 60 hours.

Mens Zenith 03.3300.3604/21.C822 Chronomaster Open 39.5mm Watch