Silent Quartz Wall Clock Movement 28mm Long Shaft DIY SC7
Silent Quartz Wall Clock Movement 28mm Long Shaft DIY SC7
Silent Quartz Wall Clock Movement – 28mm Long Shaft SC7 Mechanism
Upgrade or repair any wall clock with this precision silent quartz clock movement. Featuring a 28mm extra-long shaft (screw pattern 19mm), this SC7-style mechanism is engineered for DIY clock builds, cross-stitch frame clocks, and replacement projects alike. The sweep motor runs with near-silent operation — no ticking noise — making it ideal for bedrooms, offices, living rooms, and any space where quiet matters.
Built from durable ABS plastic with a compact 10×10cm body, this single-face quartz movement delivers reliable timekeeping accuracy of ±1 second per day at normal temperature. It operates on a standard AA 1.5V battery (not included) and handles temperatures from -10°C to 60°C, making it versatile for year-round indoor use.
Made in Mainland China.
Key Features
- ⚙️ Silent / Mute Operation – Sweep movement produces virtually no ticking sound
- 📏 28mm Long Shaft – Fits thick clock faces, frames, and cross-stitch projects (up to ~9mm sheet + extra length)
- 🎯 High Accuracy – ±1 second/day at DC 1.5V, 32,768 Hz quartz frequency
- 🔋 Low Power Draw – Instantaneous current ≤150μA at DC 1.5V; runs for months on a single AA battery
- 🌡️ Wide Temperature Range – Operating range -10°C to 60°C
- 🛠️ DIY-Friendly – Drop-in replacement or build-from-scratch clock mechanism for hobbyists and crafters
- 🏠 Modern Style – Clean, neutral design integrates into any décor
Technical Specifications
| Shaft Length | 28mm |
| Screw Pattern | 19mm |
| Operating Voltage | 1.3V – 1.7V |
| Time Accuracy | ±1s/day at DC 1.5V |
| Instantaneous Current | ≤150μA at DC 1.5V |
| Quartz Frequency | 32,768 Hz |
| Operating Temperature | -10°C to 60°C |
| Body Material | ABS Plastic |
| Dimensions | 10 × 10cm (circular) |
| Battery | 1 × AA (not included) |
| Origin | Mainland China |
Perfect For
- DIY and handmade wall clock projects
- Cross-stitch and embroidery frame clocks
- Clock repair and movement replacement
- Craft enthusiasts and hobbyists
- Living rooms, bedrooms, offices, and classrooms
Looking to complete your home décor projects? Also check out our 16-Inch Vintage Silent Wall Clock – Gold Shabby Chic Decor for inspiration, or browse our Large Capacity Pencil Pen Bag – Zipper Fabric Stationery Organizer to keep your craft supplies tidy.
Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: What clock face thickness does the 28mm long shaft quartz movement fit?
A: The 28mm shaft length is designed for thick clock faces — including cross-stitch frames, shadow box clocks, and layered DIY builds. The screw pattern spans 19mm, accommodating clock faces and panels with significant depth that standard short-shaft movements cannot reach.
Q: Is this silent quartz clock movement really tick-free?
A: Yes. This mechanism uses a sweep-style quartz motor that moves the hands in a continuous, smooth motion rather than a step-by-step tick. The result is near-silent operation, making it an excellent choice for bedrooms, nurseries, offices, or any quiet environment.
Q: What battery does this wall clock movement require, and how long will it last?
A: This movement runs on a single standard AA 1.5V battery (not included). Thanks to its ultra-low instantaneous current draw of ≤150μA, a quality AA battery can power the mechanism for 12 months or more under normal conditions.
Q: Can I use this quartz movement as a direct replacement in an existing wall clock?
A: In most cases, yes — provided your clock frame accommodates the 28mm shaft length and the hand shaft hole aligns. Simply remove the old movement unit, insert this one, reattach the clock hands, and install a fresh AA battery. Always verify your clock's shaft hole diameter and face thickness before ordering.