First of all, this movement comes with Citizen’s proprietary Eco-Drive technology. That means it can use any kind of light to charge the battery. It’s an upgraded version of the solar-powered movements. No, this Citizen Promaster Diver is powered by the Citizen Eco-Drive E168 movement, which is a solar quartz watch movement. How Long Will A Citizen Eco-Drive Last Without Light? Citizen uses their Caliber no. E168 in the Promaster Diver BN0150-28E. On a technical level, this is a three-hand quartz movement with a date display. The E168 is quite accurate, too — in a normal temperature range (5°C to 35°C), it offers ±15sec/month accuracy. For a budget watch, such level accuracy is surely praiseworthy.

Case Size and Material – The size of the case should complement your wrist. Also, the material of the case is crucial as it determines the durability and craftsmanship of the case. Type of Movement – It can be either mechanical or quartz. A better movement ensures more functionality and accuracy. All of the Citizen Promaster watches are wonders of modern engineering. So, what’s so special about the Promaster Diver?Both the Orient and Seiko listed here are not ISO certified divers. Non divers are only subject to ISO standard 2281 which only requires testing to 100% rated depth for 10 minutes. Skip lot testing is allowed meaning that not all pieces are required to be tested to achieve the WR rating. However, Citizen is NOT another watchmaker — we’re talking about one of the world’s biggest watches manufacturers. Citizen Promaster Diver is one of the most successful dive watches from Citizen and is often considered as the best budget dive watch. Yes – the Citizen Promaster Diver is ISO certified, which makes it a high functionality professional diver. Is The Citizen Promaster Automatic?

However, Citizen disappointed me with the choice of crystal. This watch comes with Citizen’s standard anti-reflective mineral crystal. The crystal is okay-ish, but nothing can match the durability of the sapphire crystals. Endurance, toughness, and accuracy are the most notable features of every ‘true’ dive watch. That being said, a decent dive watch comes cheap; also, not every watchmaker can ensure top-level durability. Of course, the design is a key element of buying consideration. But it would be a big mistake if you don’t take the functionality into account.The construction of a watch is pretty straightforward — a movement (caliber) drives the watch just like the engine in a car, a case secures it by covering it in a shell, and a strap attaches everything to your wrist.