JUNGHANS 170020 Quartz Clock Movement 053517560314 W838 21MM

( Brand: Junghans ), ( Manufacturer Part Number: 170020 ), ( Country Of Origin: Germany ), ( Type: Movement ), ( Movement Type: Quartz ), ( Compatible Model: Junghans Max Bill ), ( Manufacturer Warranty: 3 Months ), ( UPC: 053517560314 )

Review JUNGHANS Uts Quartz Clock Movement 21mm

The **Junghans 170020 W838 Quartz Clock Movement (21mm)** is a precision-engineered, high-performance timekeeping module designed to deliver exceptional accuracy and reliability for a wide range of clock and watch applications. Crafted with Junghans signature engineering excellence, this compact yet robust quartz movement combines advanced electronic components with meticulous assembly to ensure consistent, low-power operation. Measuring just **21mm in diameter**, it is ideal for modern, slim-profile timepieces, allowing designers to create sleek, minimalist watches or compact wall clocks without compromising functionality. The W838 movement operates on a **quartz crystal oscillator**, which vibrates at a stable frequency of **32,768 Hz**, enabling an accuracy of ** 10 seconds per month** under normal conditions far surpassing the precision of mechanical alternatives. Its **quartz-driven mechanism** eliminates the need for manual winding, offering seamless, maintenance-free performance for years, making it perfect for both hobbyists and professional clockmakers.

At its core, the Junghans 170020 movement features a **low-energy consumption design**, drawing minimal power from a single **CR2032 coin-cell battery** (included in some configurations) or an external power source, ensuring longevity and efficiency. The movement is equipped with a **high-precision gear train and stepping motor**, delivering smooth, silent operation with minimal vibration, which is crucial for applications where quiet performance is desired. Additionally, it includes **multiple output options**, such as **5V DC, 3V DC, or 1.5V DC**, along with **pulse signals (e.g., 1Hz, 1PPS, or 60Hz)** for synchronization with external displays or digital interfaces, making it versatile for both analog and digital timekeeping solutions. The robust construction of the W838 ensures resistance to temperature fluctuations, humidity, and minor mechanical stress, further enhancing its durability in various environmental conditions.

For clockmakers and watch designers, the Junghans 170020 movement offers a blend of **technical sophistication and ease of integration**. Its **modular design** allows for straightforward assembly into watch cases, pendulum clocks, or even custom-built timepieces, while its **adjustable sweep-second hand** (if paired with the appropriate gearing) ensures precise time display. The movement s **compact footprint** and **lightweight construction** make it an excellent choice for projects where space is limited, yet high precision is required. Whether used in a **retro-style analog watch, a modern digital display, or a decorative wall clock**, the Junghans W838 delivers a harmonious balance of **accuracy, reliability, and aesthetic versatility**, embodying Junghans long-standing reputation for precision timekeeping. With minimal maintenance and maximum performance, this quartz movement is a dependable foundation for any timepiece, ensuring that every second is counted with unwavering precision.

The **Junghans 170020 W838 quartz clock movement (21mm)** is a popular choice for DIY clock builders, but it has both advantages and disadvantages depending on your needs. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Junghans 170020 W838 Quartz Movement**

1. **Reliability and Accuracy**

The Junghans W838 is a well-engineered quartz movement known for its precision. Quartz movements are generally more accurate than mechanical ones, maintaining time within a few seconds per day with minimal maintenance. This makes it ideal for clocks where consistency is important.

2. **Compact Size (21mm)**

The 21mm width is one of the smallest standard quartz movements available, making it suitable for slim or modern clock designs. This compactness allows for creative case designs, including wall clocks, pendulum clocks, or even retrofitting into existing cases.

3. **Easy to Use for Beginners**

Unlike mechanical movements, quartz movements do not require winding or regular adjustments. They run on a battery (typically a 21mm CR2032 lithium battery, which lasts 1 2 years), making them beginner-friendly. The wiring is straightforward, and many tutorials and kits are available online.

4. **Affordability**

Compared to high-end mechanical movements or digital modules, the Junghans W838 is relatively inexpensive. This makes it a cost-effective option for hobbyists or those building clocks as a side project.

5. **Versatility in Design**

The movement can be paired with various hands (second, minute, hour) and chimes (if desired) to create different clock styles. It also works well with LED backlighting or digital displays if modified.

6. **Low Maintenance**

Beyond replacing the battery, there are no gears to oil, no pendulum to adjust, and no risk of winding errors. This makes it ideal for clocks that will sit unused for long periods.

7. **Good Community Support**

Junghans movements are widely used in the DIY clock-building community. There are abundant forums (e.g., Clockwork Forums, Reddit), YouTube tutorials, and kits available to help troubleshoot issues or guide beginners.

8. **Quiet Operation**

Quartz movements are silent compared to mechanical ones, which can be an advantage for wall clocks or clocks in quiet environments.

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### **Cons of the Junghans 170020 W838 Quartz Movement**

1. **Battery Dependency**

The movement relies on a battery, which must be replaced periodically (every 1 2 years). Forgetting to replace the battery can cause the clock to stop, and some users dislike the need for maintenance beyond the initial setup.

2. **Less "Authentic" Feel**

For enthusiasts who prefer the tactile experience of winding a mechanical clock or the charm of a pendulum, quartz movements lack the traditional appeal. Some may find them less satisfying to build or own.

3. **Limited Customization for Advanced Users**

While the movement is versatile, it lacks the customization options of mechanical movements (e.g., adjusting gear ratios, adding complications like moon phases). It is a "plug-and-play" solution rather than a buildable system.

4. **Potential for Drift Over Time**

While generally accurate, quartz movements can drift slightly over long periods due to temperature fluctuations or battery degradation. This is rare but possible, especially in extreme conditions.

5. **No Chime or Alarm Options (Standard Model)**

The basic W838 does not include chimes or alarms. If you want these features, you would need to purchase additional modules (e.g., Junghans W838 with chime or alarm kits), which adds complexity and cost.

6. **Limited Power Supply Options**

The movement typically runs on a single CR2032 battery. While this is convenient, it restricts the clock s power source options compared to movements that can use solar panels or AC adapters.

7. **Potential for Cheap Aftermarket Parts**

Some third-party sellers offer "Junghans-compatible" movements or parts that may not be as reliable. Buying directly from reputable suppliers (e.g., Clockwork Forums, Etsy sellers with good reviews) helps mitigate this risk.

8. **No "Vintage" or Collectible Value**

Unlike high-end mechanical movements (e.g., Heuer, Junghans vintage models), the W838 is a modern, mass-produced component. It does not hold resale or collectible value.

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### **Conclusion**

- Beginners looking to build a clock with minimal hassle.

- Projects where accuracy, reliability, and compact size are priorities.

- DIY enthusiasts who want a modern, functional clock without the complexity of mechanical movements.

- Those who prefer low maintenance and silent operation.

- Purists who prefer mechanical clocks.

- Builders who want advanced customization or complications.

- Users who dislike battery replacements or want a more "self-sufficient" power source.

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### **Recommendation**

If you are **new to clock building** or want a **simple, accurate, and easy-to-assemble** clock, the Junghans W838 is an outstanding choice. Its compact size and reliability make it ideal for wall clocks, desk clocks, or retrofitting into existing cases. Pair it with a well-reviewed kit (e.g., from Clockwork Forums or Etsy) to ensure quality parts and clear instructions.

For **advanced builders** or those who want a **mechanical experience**, consider a mechanical movement (e.g., Junghans W838 with a gear train or a full mechanical kit). If you prioritize **solar power or alarms**, look for a movement with those features (e.g., Junghans W838 with chime or solar options).

Ultimately, the W838 is a **versatile, beginner-friendly, and reliable** option that delivers great results with minimal effort. If your goals align with its strengths, it is highly recommended.

Details:

Its flat, separate design makes it easy to install and use, while its high-performance stepper motor sweep second-hand ensure precise timekeeping. The BUZZUFY Team. Installation hole diameter: 78mm without suspension. Technical Specifications: Movement size: B 56 x56/5817mm.

Our shipping methods are regular via USPS, UPS or other local postal carrier AND express DHL FedEx. Sweep second-hand for precise timekeeping. Junghans UTS W838 Quartz Clock Movement: The is a high-performance quartz clock movement designed for discerning horologists and watchmakers. Adjustable minute and hour holes for customization.

Fixing: central screw M10.0mm. Key Features: Quartz battery-powered movement for high accuracy and reliability. High-performance stepper motor with seconds-timer function. This reliable and long-lasting movement features a flat, separate design with optimum dimensions, making it an ideal choice for wide range of applications.

Flat, separate design with optimized dimensions for easy installation and use.

part #: 170020 prices

• $17.99-$84.00

specifications movementparpar:

• brand: Junghans
• mpn: 170020
• country of origin: Germany
• type: Movement
• movement type: Quartz
• compatible model: Junghans Max Bill
• manufacturer warranty: 3 Months
• upc: 053517560314

general movementparpar:

• Parts, Tools Guides > Parts > Movements
• condition: New with tags

shipping movementparpar:

• type: Fixed
• cost: $0.00
• class: Economy, Expedited
• transit: 3-9 Days
• service: Economy, Expedited

payments movementparpar:

• credit card: Visa
• other
• wallet: Paypal

returns movementparpar:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days
• method: Money back

offer movementparpar:

• started: April 14, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home

seller movementparpar:

• # reviews: 5855
• city: Salt Lake City, Utah
• rating: 100.0%

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