Sellita SW510 BH b

TABLE OF CONTENTS

• Overview
• Accuracy
• Time Setting

Overview

The Sellita SW510 is a self-winding chronograph movement that harnesses the wearer's natural motion to wind the mainspring, providing a power reserve of up to 62 hours when fully wound. This ensures extended operation without requiring constant movement.

Renowned for its precision, robustness, and functionality, the SW510 features a chronograph complication, making it a favored choice for sports watches and timepieces requiring precise timekeeping. Its reliability and versatility make it a popular option among watchmakers and enthusiasts alike.

Specifications

• Type: Automatic (Self-winding) with Manual Winding Capability
• Functions: Display by means of hands hours, minutes and seconds at 9 o’clock. Chronograph 60

  s. Counters 30 min and 12 h. Date in window with quick corrector.

• Power Reserve: Minimum 56h, Typical 62h
• Accuracy: ±5 seconds per day
• Jewels: 27
• Vibrations per Hour (BPH): 28,800 A/h (4 Hz)
• Hand-Winding: Yes
• Diameter: 30mm 
• Thickness: 7.90mm
• Crown Position: 3 o’clock 
• Chronograph mechanism: Chronograph mechanism with cams, integrated into the movement
• Push-buttons: push-button at 2 o’clock: start-stop of chronograph, push-button at 4 o’clock: return to zero of chronograph
• Date Function: Yes (optional)
• Day Function: No
• Range: Elaboré
• Balance wheel: Nickel gilt

Time Setting

1. Wind the Watch
   Unscrew crown and pull it to position 1 and rotate clockwise 25–30 times to charge the mainspring
2. Set the DATE
   Push the crown to Position 2 and rotate CounterClockwise to move Calendar Disc if present.
3. Set the Time
    Pull the crown to Position 3 and Rotate clockwise or counterclockwise to set the time. The small seconds will hack (stop).
4. To operate the chronograph
   Start/Stop: Press the pusher(A) at the 2 o'clock position.  Reset: Press the pusher(B) at the 4 o'clock position.
5. Tighten the crown
   To ensure water resistance, you must always tighten the crown before use. For watches with a screw-down crown, press the crown in while turning it clockwise until it is fully screwed down against the watch case to create a watertight sea

This movement is used in the following references

U3S-CIT

U3S-HS

U3S-TSL

U3S-M