Updating…
Extremely rare virtually unique Longines Cal. 6412 / Beta 21 dashboard clock / timepiece, in perfectly working order. Equipped with unique original Longines dial, different from standard Ultra Quartz dials (they are all cushion shaped, smaller size and with “–[]–“ symbol above writing), so the dial most likely was made specifically for this timepiece. Looking on the caseback of the clock seems it was installed in some dashboard or panel, maybe car.
Clock is in overall very good 9/10 condition, running and ready to use or gift!
Dimensions : 42 mm excluding the crown, bezel diameter is 49mm.