Casio Dep600. Age is unknown, this model was released in 1993. Logs 20 dives, minutes and seconds from the moment depth reaches 1m. Can’t remember exactly, but if repeat dive was made within 1hour it will sum up all dives into a total time. Logs water temperature as well. Not a freediving computer, but very stylish and reliable time piece. Strap is cheap a bit short, skin diving only. I bought this watch as collectible item, but made it into my primary everyday watch and had it for 7 years. Spearfished regularly and changed battery a few times. Took it to Honduras, Thailand, Mediterranean and locally in British Columbia. This watch works like new, despite all the cosmetic scratches. Proven workhorse. 100$ + shipping. Price is firm.
Citizen Eco Drive dive watch with depth meter. Red arm shows depth when watch is in the water, out of the water it shows battery charge or works as seconds arms in chronometer mode. Charges automatically from daylight. Functional uni-directional bezel, for those who use bezel this is a must have feature. Long and functional strap, good enough to wrap around 7mm wetsuit. Again, not a freediving computer, not a gadget but beautiful every day wear watch with depth meter. I always wanted this model, but turns out the red needle is hard to see with my ageing eyes, I am at the point when I need bifocal prescription mask to be able to use this watch. Watch is very lightly used, shows like new. 150$ + shipping.