Documented details

Tank interior, L × W × H: 156 × 94 × 46 mm; not basket dimensions
Presets: 90, 180, 280, 380, 480 seconds
Ultrasonic power in manual: 25 W

What the dimensions can establish

The UC22 manual publishes a tank interior of 156 by 94 by 46 mm. These are tank dimensions, not a confirmed usable basket envelope. They help rule out plainly oversized objects, but do not prove that an object close to the limit will fit with the required support and immersion depth.

Measure your item in its permitted cleaning arrangement before buying. A model with a shallow tank may be awkward for a bulky assembly even when that assembly is short enough. If a protruding part must remain out of the bath, do not assume partial immersion is approved without checking the object's care instructions.

Five presets still require an appropriate routine

The five selections run from 90 to 480 seconds. The manual recommends a 5–10 minute cooling interval between cycles. That is relevant if you expect to run a long queue of items: the operating routine includes more than the time shown on the display.

We would compare this model for occasional household batches before treating it as a continuous workshop machine. If your work requires prolonged runs, independently controlled heat or a specific preparation mode, establish those capabilities elsewhere rather than inferring them from the digital display.

The supplied holder is not blanket watch approval

The UC22 manual excludes automatic and mechanical watches and lenses with damaged coatings. Its compatibility restrictions should shape the shortlist even though the product page advertises a watch holder. A supplied accessory does not approve every object that can be positioned on it.

For a buyer deciding among Magnasonic models, the UC22 deserves attention for its documented shallow geometry and selectable timer. Keep basket clearance unresolved until confirmed. We have not run comparative cleaning trials, and the difference between 40 and 42 kHz is not a basis for declaring this model better or worse than its siblings.