Like the title says, I'm looking for a Sinn that is tegimented, has a satinized finish, and is exactly 40mm.
The 856 is tegimented, 40mm, but not satinized - it's bead blasted.
The 556 is 40mm and has a satin finish, but is not tegimented (nor does it have ar-dehumidifying or magnetic field protection).
The 836 is tegimented, has a satin finished, but is 43mm.
Do you think the factory would be willing to satinize the case and bracelet for one 856?