Does this 1680 look ok?

[XavierM]

Hi there,

Far far far from being an expert but this is what I see:
Dial looks like a Mk2 but I think the coronet shape is a bit strange. Expert needed there :)
Insert looks like a service one (very thin numbers) in very poor condition
Datewheel I can't tell
702 crown which is probably period correct (depending on the serial number)
Lugs look Thick enough, far from a perfect example but still ok considering the age of this old lady.
Do you have the Serial Number ?

Regards,