Based on this product's specifications, here are some alternatives and similar models
Single-use battery Varta V329
Summary description:
The Varta V329 is a high-quality single-use silver-oxide battery designed for various devices. With a height of 3.1 mm and a diameter of 7.9 mm, it is compact and lightweight at just 0.6 g. This button/coin battery type (SR731) ensures reliable performance and longevity, making it ideal for watches, calculators, and other small electronics.