Diesel watches do not share one universal battery size. Battery fit depends on the exact watch reference and movement, so a general coin-cell chart is not reliable evidence of fitment.
How do I find the right battery for my Diesel watch?
Check the full reference on the caseback and the movement information in the watch documentation. Use Diesel’s model-specific battery guidance or ask an authorized service provider or qualified watchmaker to confirm the required battery and chemistry. Do not choose a cell from another Diesel model, a generic size list, or a visual match alone.
Should I replace the battery myself?
If the caseback or gasket needs special tools or the watch’s water resistance matters, use a qualified watch service provider. Opening and resealing the case incorrectly can compromise its seal; do not assume the watch remains water-resistant after a battery change.
Are watch batteries 377 and 364 interchangeable
No. A 377 is commonly cross-referenced to SR626SW, while a 364 maps to SR621SW. They have the same general diameter but different thickness, so use the size listed for your Diesel watch model. Do not substitute based only on voltage or a retailer’s broad “equivalent” label.
For model-specific fitment, see the watch battery chart examples.
Sources: Energizer battery cross-reference guide; Maxell battery cross-reference guide
