Citizen 9051 and 9054
Citizen’s 28,800 bph automatics: hacking seconds, hand winding and about 42 hours.

In figures
What it is
The 905x family is Citizen’s mid-range automatic, found in the Promaster Fujitsubo and the sportier Series 8 models. It beats at 28,800 per hour, so the seconds hand steps eight times a second, and gives about 42 hours of reserve.
The 9051 shows the date; the 9054 adds a GMT hand to read a second time zone. Both hack and hand-wind.
For anyone who wants the high beat rate of a classic Swiss movement in a Japanese watch.
Maker: Citizen. The figures on this page come from each watch’s spec sheet.
Watches that use it
Compared
| Figure | Citizen Promaster Fujitsubo | Citizen Series 8 880 GMT |
|---|---|---|
| Indicative price band | €560–620 | €1,200–1,290 |
| Movement | 9051 | 9054 |
| Power reserve | 42 h | 50 h |
| Beat rate | 28,800 bph | 28,800 bph |
| Crystal | Sapphire | Sapphire |
| Water resistance | 200 m | 100 m |
| Diameter | 41 mm | 41 mm |
| Thickness | — | — |
| Lug-to-lug | — | — |
| Hacking seconds | Yes | Yes |
| Hand winding | Yes | Yes |
| Rotating bezel | Yes | No |
| Strap or bracelet | Titanium bracelet | Steel bracelet |
| Brand origin | Japan | Japan |
| See price on AmazonSee specs | See price on AmazonSee specs |
Frequently asked questions
Which watches use the Citizen 9051 and 9054?
In the catalogue, the Citizen Promaster Fujitsubo and Citizen Series 8 880 GMT.
How much power reserve does the Citizen 9051 and 9054 have?
From 42 to 50 hours, according to each manufacturer’s data.
Which is the least expensive watch with this movement?
The Citizen Promaster Fujitsubo, with an indicative price band of €560–620.