Battery & Crystal

If you have a dead battery, here is our size chart based on model to have it sourced and replaced by a local watchmaker::

Model Reference Battery Reference
245 SR621SW
246, 249, 280 SR626SW
296, 367, 368, 375, 388, 392 SR920SW
386, 477 SR927W
436 SR936SW

If you have a broken crystal, here is our size chart based on model to have it sourced and replaced by a local watchmaker:

Model Reference Diameter Thickness Order
235, 411 ∅ 36.0 mm h 1.4 mm   Star Time Supply
245, 246, 249, 280, 296 ∅ 33.5 mm h 1.2 mm   Star Time Supply
363, 367, 368, 375, 386, 388, 392     ∅ 35.0 mm h 1.5 mm   Star Time Supply
436, 477 ∅ 36.5 mm h 1.8 mm