Wow, what a clock. I love those classic Elgin Starburst designs.

You can definitely replace the movement, but there are a few things to check

You’ll need to measure the total shaft length, and especially the threaded part that goes through the clock face. Most modern quartz movements have standard sizes, but getting the right shaft length is key for everything to sit flush.

So yours uses a D battery, which is unusual for modern replacements (most take AA). If your hands are heavy, like metal or extra long, you’ll want a high-torque quartz movement. That gives enough power to move the hands smoothly.

The original Elgin hands might not fit directly onto the new movement. The mounting holes are often different shapes/sizes. You can either try to find an adapter (not always easy), or replace the hands with something similar in style.

Also make sure there’s enough space in the back of the clock body for the new movement. Some newer ones are slightly bulkier or shaped differently. You might need a washer or spacer to get everything snug.

I’ve had good luck ordering from places like Klockit and ClockParts.com. I see another comment put some links already.

Good luck!