Why these three.
Small brands need movements that are cheap, proven and available in volume. The NH35 comes from Seiko Instruments, the Miyota 9015 from Citizen’s Miyota, and the PT5000 from a Chinese maker. Most buyers never need to know the difference, but it explains why two watches at the same price can feel different.
At a glance.
These are typical published figures. Sellers can differ, so use the number on the product page.
What beat rate means.
A higher beat rate makes the seconds hand look smoother because it ticks more often per second. It does not make the watch more accurate by itself. Our automatic watches guide explains how the escapement works.
Power reserve and daily use.
A reserve of around 40 hours means a fully wound watch runs for a day and a half off the wrist. Some listings state longer figures: BODERRY lists 80 hours for its Hangzhou 7208 in the HOU 80-hour. See power reserve explained.
Which should you choose?
If you want the broadest servicing support, choose an NH35 watch. If you want a smoother sweep, choose a 9015 or PT5000. The movement matters less than the build, the crystal and the fit, so use it as a tiebreaker rather than a starting point.
Watches with each movement.
SHY042 40mm NH35A Diver (Black)
A 40 mm steel diver with a display caseback for $169
37 Automatic - Champagne Mist
A champagne dial with a subtle circular texture
T028 37mm PT5000 Automatic Dive Watch (Black Dial)
A compact black-dial diver with two interchangeable bezels.
A few good questions.
Is the NH35 a good movement?
Yes. It is widely used in affordable watches, is sturdy and is easy for most watchmakers to service.
Is the PT5000 the same as the Sellita SW200?
It is widely described as a clone of the Sellita SW200-1, but it is a different manufacturer’s product, so check the seller’s own specification.
Is the Miyota 9015 better than the NH35?
It beats at 28,800 vph for a smoother sweep and is slimmer, but the NH35 is more widely used. Neither is clearly better for every buyer.
Do these movements hand-wind and hack?
The NH35 and 9015 both do; check the listing for the PT5000 and for any other model before buying.
How we write guides: we explain watchmaking from manufacturer documentation and published standards, and say plainly where numbers vary by brand or movement. Our approach.