
Seiko
A Seiko (TMI) quartz caliber with a high-frequency stepping motor that drives a smooth four-beats-per-second sweeping seconds hand instead of a single tick. Battery-powered and accurate to about ±20 seconds per month, it gives quartz watches a mechanical-style sweep at low cost.
4 colorways
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The community take
The Addiesdive Sub Quartz Watch Diver's 200M (H3QZ) is praised for its value and specifications at its price point, with owners appreciating it as an accessible way to explore different watch styles. However, several drawbacks are noted: the mineral crystal is prone to scratching, the bezel action is described as too easy and hollow-sounding, and the stock bracelet is considered rattly and uses push pins. The crown operation is stiff, and the Mercedes hands are seen as underwhelming due to their short length and thinness. Some owners also report issues with bezel insert alignment requiring reattachment. A specific servicing concern is that the movement is not removable from the back. Despite a 200m water resistance claim, owners express skepticism. On balance, owners rate the Addiesdive Sub Quartz Watch Diver's 200M (H3QZ) highly for its impressive specifications and value, with the main caveats being the mineral crystal and bracelet quality.
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