Model or caliber number
State the watch model or movement caliber. If the movement has no caliber name, say so — a stem or spring bar can still be matched by measurement.
Part inquiry
If a part number is not in the catalogue, send it anyway. A missing listing is not a dead end: the number can be checked against what is available.
Information to send
Four details make a number checkable. Include them in the message and the reply can be specific.
State the watch model or movement caliber. If the movement has no caliber name, say so — a stem or spring bar can still be matched by measurement.
Take the measurements from the part itself, in millimetres. Include the diameter, thread size, length or width as it applies to the part.
Say whether the part belongs to the case back, crown, stem, tube, spring bar, band link or movement — it narrows the search in the catalogue.
State how many pieces or sets you need. A repair bench order is often a small mixed list, and each line can be checked separately.
Send it
Send the model, measurement or part number. If a guide raised a question about sizing, mention the page you were reading.
Part inquiry
Include the number, the measurement and the quantity. We reply within one working day, to the address you send from.