Nako Na-617a User Manual -

Disclaimer: This guide is based on user-contributed information and common product specifications. Nako is a generic brand; features may vary slightly by production batch.

Whether timing laps or exercising, the stopwatch mode is easily accessible:

Remove the clock unit gently from its modular dashboard stand. Nako Na-617a User Manual

The hourly chime feature is turned on. Follow the instructions in section 4 to deactivate it.

Press D (Start) to reset the seconds to zero. The hourly chime feature is turned on

From the normal time-display screen, pressing the button cycles through the clock's functions in this specific sequence: Press 1 Time: Activates the Stopwatch (Chronograph) mode. Press 2 Times: Enters the Alarm Setting mode.

Carefully lift the back plate, taking care not to misplace the small alarm spring (a tiny loose metal spring that connects the circuit board to the piezoceramic speaker on the back cover). From the normal time-display screen, pressing the button

Press repeatedly until the correct minute number is displayed. Press S (Lap) again to shift focus to the Hours field.

Press while the timer is stopped to reset the display to zero. Press M to return to the normal time display. Maintenance and Care

Most users find it accurate enough for daily use, with some reporting a slight drift of about 2 seconds per day. Ease of Use: While the manual is included, users on Yandex Reviews

The Nako NA-617A is a compact, highly efficient digital electronic clock widely used in vehicles, offices, and homes. Known for its minimalist design and reliable timekeeping, this budget-friendly device packs essential features like a 12-hour display, calendar, stopwatch, and alarm.