SR626 and 377 (SR626SW) / 364 (SR621SW) / 371 (SR920SW) share similar diameters but differ in thickness and capacity: SR626 is 6.8 mm × 2.6 mm at 1.55V with 27 mAh.
The holder decides: use exactly the size that closes freely — forcing a thicker or thinner cell damages both battery and device.
Both are available on our model pages with individual packing data; for a mixed assortment quote, contact our team.
