Tsao Baltimore | Baltimore Watch Company

How to Use the Chronograph on Your Constellation Chrono-Diver

How to Use the Chronograph on Your Constellation Chrono-Diver

By Tsao Baltimore | Baltimore Watch Company | Published: 2026-10-23

Category: How-to Guides

Learn how to start, stop, and reset the chronograph on your Constellation Chrono-Diver. Step-by-step instructions with common mistakes to avoid.

Quick Answer

Press the top pusher to start the chronograph, press it again to stop, then press the bottom pusher to reset. Always reset before starting a new timing.

Why the Chronograph Matters on a Dive Watch

The Constellation Chrono-Diver is a vintage-inspired dive chronograph, so its chronograph function is useful for timing dives, elapsed time, or even parking meters. The subdials at 3 and 9 o'clock track minutes and hours, while the central seconds hand does the timing. Because the watch uses a quartz movement, the chronograph runs accurately without needing manual winding.

Step-by-Step: Using the Chronograph

  1. Start Timing: Press the top pusher (at 2 o'clock) once. The central seconds hand will begin moving. The subdial at 3 o'clock tracks minutes, and the subdial at 9 o'clock tracks hours. Do not press the bottom pusher while the chronograph is running—it will not reset and may feel stiff.
  2. Stop Timing: Press the top pusher again to stop the chronograph. Read the elapsed time from the subdials and the central seconds hand. If you need to record multiple intervals, write down the time before resetting.
  3. Reset to Zero: Press the bottom pusher (at 4 o'clock) to reset all chronograph hands to zero. The central seconds hand should snap back to 12 o'clock, and the subdial hands should return to zero. If the hands do not align perfectly at zero, the watch may need a battery change or service—this is normal for quartz chronographs over time.

About Your Constellation Chrono-Diver

  • Constellation Chrono-Diver - Midnight Grey: Limited to 50 pieces, the Midnight Grey dial features Old Radium Swiss SuperLuminova on the indices and C3 SuperLuminova on the subdials. The different lume colors help you quickly distinguish the main time from the chronograph registers in low light.
    Constellation Chrono-Diver - Midnight Grey
    Constellation Chrono-Diver - Midnight Grey

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