Miyota · Japan
Miyota 9075
The Miyota 9075 was unveiled around late 2021 and made its commercial debut in watches such as the LIP Nautic Ski Auto GMT before broader market availability through 2022. It belongs to Miyota's '90 Series' Premium Automatic family — the same lineage as the prolific 9015, which has been in production since 2009.
The 9075 shares its 26 mm footprint with the 9015, effectively extending that platform to accommodate a true-GMT complication. The addition of the independent hour-hand mechanism adds roughly 1 mm to the movement's height compared to the 9015 (4.92 mm vs. 3.90 mm), with the trade-off being a fully independent local hour hand that jumps in one-hour increments without interrupting the running seconds or disturbing the home-time reference — the definition of a 'traveler' or 'true' GMT.
Before the 9075 arrived, affordable true-GMT movements were effectively off-limits to independent watchmakers and microbrands; the prevailing alternatives were either 'caller' or 'pseudo' GMTs that lacked independent hour-hand adjustment, or expensive Swiss-certified options. The 9075 changed the economics of the complication almost immediately, and within two to three years of its introduction it had been adopted by a large number of microbrands and mid-market labels seeking a capable, made-in-Japan true-GMT solution.
Hz
Jewels
Reserve
In catalog
Technical specification
| Manufacturer | Miyota |
| Origin | Japan |
| Type | Automatic |
| Beat rate | 28,800 bph · 4 Hz |
| Jewels | 24 |
| Power reserve | 42 h |
| Diameter | 26 mm |
| Height | 4.92 mm |
| Hacking seconds | Yes |
| Hand-winding | Yes |
| Date | Yes |
| GMT | Yes |
| Chronograph | No |
| Accuracy (stated) | -10/+30 s/day |
| Based on | Miyota 9015 |
2 models
Watches with this caliber
FAQ
Is the Miyota 9075 automatic or manual?
The Miyota 9075 is an automatic (self-winding) movement: a rotor winds the mainspring from the motion of your wrist, so it needs no battery. It can also be wound by hand via the crown.
What is the power reserve of the Miyota 9075?
About 42 hours on a full wind — into a second day, so it keeps running overnight off the wrist. Power reserve is how long the Miyota 9075 keeps running once you stop wearing or winding it.
Does the Miyota 9075 hack (stop the seconds when you set it)?
Yes. Pulling the crown stops the seconds hand, so the Miyota 9075 can be set precisely to a reference time before you push the crown back in. Hacking is what lets you sync several watches — or a watch and a phone — to the exact second.
Does the Miyota 9075 have a date function?
Yes — the Miyota 9075 can drive a date display, though whether a given watch actually shows the date depends on the dial the maker chose, so check the individual model rather than the movement.
How accurate is the Miyota 9075?
The Miyota 9075 is rated at -10/+30 s/day. That is a normal working range for an uncertified mechanical movement; a COSC-certified chronometer is held to a tighter −4/+6 s/day, and a watchmaker can usually regulate one closer. Real-world accuracy still depends on how each watch is regulated, worn, and serviced.
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