Citizen Promaster DivervsSeiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

The Citizen Promaster Diver is praised for its handsome dial made from recycled materials and lightweight comfort, with one owner noting its Ecodrive movement achieved +1 second in 7 days. Another owner highlights the "Kermit" NY0071–81E's Super Titanium case and Japanese 8203 calibre movement, which has an accuracy of +20/-40 seconds per day. Criticisms include potential difficulty maintaining charge in a large collection and a slightly misaligned bezel and chapter ring, with a preference for sapphire crystal and ceramic bezel over mineral glass and aluminum. One owner found their 1990 Promaster Aqualand's quartz movement required repairs twice. Overall, owners value the Citizen Promaster Diver for its unique dial and comfortable wear, though movement accuracy and material choices are points of varied observation.

Owners widely praise the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition for its attractive, well-made design and gorgeous dial, noting its jewel-toned teal color and rippling-water pattern. The bezel action is smooth with a muted sound, and the case and bracelet offer a more comfortable feel than previous iterations. However, multiple owners express disappointment with the accuracy of the 6R movement at its price point, with some noting theirs runs slow, and consider the price too high. The steep rehaut and marker size make the 24-hour numbers difficult to read, and some find the case design makes the watch feel top-heavy despite wearing smaller. Overall, owners rate the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition highly for its striking dial and refined case design, despite concerns regarding movement accuracy at its price.