Citizen Caliber 5920: Compact Analog Quartz Movement with Power-Saving Technology

The Citizen Caliber 5920 is a compact analog quartz movement designed for precision, efficiency, and thin profile watch construction. Developed during Citizen’s push to innovate energy-saving quartz mechanisms, the 5920 offers both reliability and intelligent design, making it suitable for thin analog watches with center seconds.

Key Features

• Display Type: Analog

• Hands: Hour, minute, and center second

• Power-Saving Switch: Yes

• Second-Hand Stop Device: Included

• Oscillation Frequency: 32,768 Hz

• Movement Thickness: 2.5 mm

• Dimensions: 13.0 mm × 15.2 mm

The Caliber 5920 focuses on simplicity and durability. It features the essential timekeeping functions and adds value with its power-saving switch, allowing the user or technician to reduce battery drain during storage or shipping.

Design and Structure

Despite its ultra-thin form, the 5920 is a full-featured quartz movement. It uses a standard three-hand layout (hour, minute, second), driven by a dependable quartz oscillator. Its compact build makes it ideal for slim dress watches or women’s models where internal space is limited.

The 5920 also shares its movement holder compatibility with Calibers 1000 and 2950, making it easy to service and integrate into existing case designs.

Components and Parts Overview

The caliber is built from multiple fine components designed to work in harmony. Key mechanical and electrical components include:

Timekeeping Train:

• Third Wheel and Pinion (017)

• Fourth Wheel and Pinion (023)

• Fifth Wheel and Pinion (084)

• Cannon Pinion with Driving Wheel (028)

• Minute Wheel and Pinion (072)

• Hour Wheel (075)

• Clutch Wheel (064)

Setting Mechanism:

• Setting Stem (065)

• Setting Lever (067)

• Yoke (071)

• Setting Wheel (076)

• Setting Lever Spring (077)

• Spacer for Setting Stem (212)

Electronic and Energy Section:

• Unit of Electronic Circuit (275)

• Coil Unit (246)

• Stator (190)

• Rotor (285)

• Battery (standard silver oxide cell)

• Battery Connector Spring (231)

Structural Components:

• Train Wheel Bridge (701)

• Center Wheel Cock (711)

• Main Plate (750)

• Dial Washer (078)

• Screws and spacers (027, 923)

Each of these components is labeled with alternate part numbers for different variations (5920A, 5920E, 5930A, 5931E, etc.), suggesting that the design allowed for modular use across slightly different models.

Applications and Watch Types

Movements like the 5920 are ideal for:

• Slim quartz watches

• Economical but reliable timepieces

• Entry-level analog watches

• Women’s and mid-sized models

Its power-saving switch, small footprint, and straightforward analog operation make it a cost-effective solution in both retail and vintage sectors.

Servicing and Maintenance

From a watchmaker’s perspective, the 5920 is easy to maintain. The availability of standard components like the coil unit, rotor, and setting stem simplifies repairs. The thin design also makes the movement relatively easy to handle during servicing, provided that proper tools are used to avoid bending or damaging the flat structure.

Conclusion

The Citizen Caliber 5920 is a dependable and minimalistic analog quartz movement with thoughtful features like a power-saving switch and second-hand stop device. It provides a solid foundation for low-profile, battery-efficient wristwatches and continues to serve as a practical option for restoration and repair in the watchmaking world.