Citizen Promaster Professional DivervsHamilton Khaki Navy Scuba Quartz

The Citizen Promaster Professional Diver is a serious instrument with a robust technical appearance, featuring strong lines and an aggressive bezel. It utilizes Citizen's Duratect MRK and DLC coatings for scratch resistance. The BN1024-01E model offers a 300m depth rating and a sapphire crystal, with a 365-day power reserve from its Eco-Drive quartz movement. However, its large size, measuring 52.5mm in diameter and nearly 22mm thick, makes it unsuitable for everyday wear. One reviewer notes the absence of an orange minute hand, which is considered effective on other Promaster models. On balance, the Citizen Promaster Professional Diver is a highly capable, albeit massive, dive tool, with its scratch resistance and long power reserve being key strengths.

The Hamilton Khaki Navy Scuba Quartz is noted for its 37mm case size, matte green dial, and aluminum bezel insert, offering 100m water resistance and a green NATO strap. It is powered by an ETA F06.105 quartz movement with an extended battery life of up to 94 months, and is priced at $545. One owner questions its value proposition based on significant price differences between regions. On balance, the Hamilton Khaki Navy Scuba Quartz is seen as a functional quartz dive watch with a notable battery life, though its value is debated by some owners.