Last time, I introduced the Nautilus 5712 from WS Factory. Since WS entered the market, this model has become even more controversial, because none of the versions currently made by the different factories are perfect. Extra aftermarket parts are still needed if you want to upgrade the watch. For those who are really pursuing a high-quality 5712, buying the watch itself plus all the necessary modifications can become quite expensive.

This time, WS Factory has also released three Aquanaut models, available in green, blue, and rose-gold brown. The factory claims that their weights are the same as the genuine watches. I do not know the exact weights of the genuine versions, but all three WS models feel quite heavy, especially the blue and green ones, each weighing around 150 grams.

There are already several factories in the market producing weighted Aquanaut replicas, including DDF and APW, but neither of them makes versions as heavy as the WS models.

Unlike other factories that make weighted watches, WS uses a high-density precision tungsten material for this Aquanaut. According to the factory, its density is 16.8 g/cm³, the same as platinum, rather than the tungsten-copper alloy, tungsten steel, or steel-wrapped tungsten commonly used in the market.

WS also claims that this material will not oxidize or peel, and that it can be gold-plated. The material is extremely hard, which makes machining very difficult, so production capacity is relatively limited.

The movement inside is the latest 26-330 with hacking seconds feature.