Based on this product's specifications, here are some alternatives and similar models
Single-use battery Panasonic SR-721
Summary description:
The Panasonic SR-721 is a single-use coin battery with a voltage of 1.55 V and a capacity of 25 mAh. Measuring 7.9 mm in width and depth, and 2.1 mm in height, it is designed for reliable performance in various devices. Ideal for watches, calculators, and other small electronics, this battery ensures long-lasting power and dependable operation.