Appellant contends the officer's testimony cannot be considered reliable evidence of speed because it is uncorroborated by speedometer calibration test results. However, appellant offers no authority supporting this assertion. While we are aware of no California case directly on point, courts in other jurisdictions have permitted the fact finder to consider testimony of speedometer readings even absent calibration results. The courts reason that the general accuracy of speedometers is a matter of general knowledge and although speedometers "like other machines, may get out of order ... they may be relied upon with reasonable certainty to determine accurately the speed at which a vehicle is driven." (State v. Tarquinio (1966) 3 Conn.Cir.Ct. 566, 221 A.2d 595, 596-597; see also People v. Tyler (Ct.Spec.Sess. 1952) 109 N.Y.S.2d 756, 757.) In Tarquinio, the court held an officer's testimony concerning a speedometer reading was admissible prima facie evidence of speed. The officer's failure to present evidence of calibration would go to the weight of that evidence. Similarly, in (Village of Schaumburg v. Pedersen (1978) 60 Ill. App.3d 630, 18 Ill.Dec. 99, 377 N.E.2d 252, 254), the court held that even absent proof of calibration, the accuracy of a speedometer was a question of fact. As one court observed, "our courts receive evidence daily of readings on watches, scales and other measures without affirmative proof of their testing; the defendant is, of course, at liberty to attack the readings through cross-examination and otherwise and the ultimate determination is fairly left to the trier of facts." (State v. Dantonio (1955) 18 N.J. 570, 115 A.2d 35, 41.)