A great tool watch. I bought this to replace my Seiko 6309-7049 diver that I bought in Feb ‘85. This watch has similar looks but has the advantage of the Eco-Drive needing only light to charge it. So far, this watch seems robust enough for everything I’ve put it through. I’ve worn it fishing, swimming, shooting, and in daily yard work chores. It hasn’t lost time that I can tell - I don’t do anything precise enough to sync with a world clock. It looks and performs like a solid work watch, but is also nice enough to wear for casual outings.

I love that it's slightly smaller than my Casio Duro but still big enough to read when moving in the water, and how the crown is at the 4 o'clock position rather than the 3 o'clock so that it won't dig into the back of my hand while swimming and exercising. The time indicators and hands glow very brightly with just a bit of sun to charge them. The rubber watch band was built to be durable and so was thick, so I switched it out with a thin nylon NATO ballistic band that should last as long as the watch's 25-year solar-recharged battery. The 20 bars/200 meter water resistance means I can wear it swimming laps in the pool, snorkeling, and freediving without fear of water intrusion into the watch casing. The matte finish on the case means polished metal details on the ... MoreI love that it's slightly smaller than my Casio Duro but still big enough to read when moving in the water, and how the crown is at the 4 o'clock position rather than the 3 o'clock so that it won't dig into the back of my hand while swimming and exercising. The time indicators and hands glow very brightly with just a bit of sun to charge them. The rubber watch band was built to be durable and so was thick, so I switched it out with a thin nylon NATO ballistic band that should last as long as the watch's 25-year solar-recharged battery. The 20 bars/200 meter water resistance means I can wear it swimming laps in the pool, snorkeling, and freediving without fear of water intrusion into the watch casing. The matte finish on the case means polished metal details on the watch face really pop. It looks great and I have no problems taking it from the beach to the dinner table, whether in a bathing suit or a 3-piece suit. Very fashionable.

This is the 2nd Eco-Drive Citizens Watch I have purchased directly from citizenwatch.com. Both were bought when they were on sale and in my opinion the Promaster Diver at full price would still be a great buy. I always like this style of dive watch and my only problem was deciding which color/combo to buy. I settle on black/black and love the way it looks on my wrist. The Eco-Drive system, after the initial charge, will keep ticking seemingly forever with any additional light source. I added a tempered glass crystal protector (SINO-SKY from Amazon) that is unnoticeable from a top view but is seen from the side (see photos). I am very happy with both purchases and glad I bought them directly from Citizens.