Old clock: old mechanical clock, timepiece, watch, tick tock, tik tak. Mechanical, clicking sound of an old clock. Recorded with zoom h4n. Cut into loop. Converted to flac (audacity; level 8).
Cut up a recording of an old grandfather clock, removed the noisy whirring in between ticks, and added long dreamy reverb that grows a bit towards the end. .
Sound of my binger wristwatch ticking. I used phase cancellation to get rid of the noise floor except for the ticks. At lower volumes it sounds very convincing. I draped the watch over my microphone - the blue yeti pro.