It may look like a $450 fillet brazed stem from a custom frame builder, but the Grand Cru Quill Stem is actually made using a custom one-piece steel quill and extension. The clamp is welded onto the extension and the weld is hand-filed smooth on top. This results in a strong yet relatively light stem with a classic shape.
There is a 5mm boss on the drive side for mounting a Temple Bell (sold separately in Brass and Mirror). Not compatible with the Striker Bell.
Quill length is 180mm, or 120mm above the minimum insert line. Alloy wedge. Weight is 385g (for 100mm size)