Calibre
Hamilton H-31
In 34 watches by Hamilton
- Kind
- Automatic
- Beat
- 28,800 beats an hour (4 Hz)
- Power reserve
- 60 hours
- Jewels
- 27
- Watches from
- 2017 to 2025
Watches that use it
Other Hamilton calibres
- Hamilton H-10147 watches
- Hamilton H-10 ND122 watches
- Hamilton H-3044 watches
- Hamilton H-10-S36 watches
- Hamilton H-4034 watches
- Hamilton H-50 ND31 watches
- Hamilton H-21 [Day - Date]30 watches
- Hamilton H-21 [Date]29 watches
- Hamilton H-21 Si10 watches
- Hamilton H-149 watches
- Hamilton H-128 watches
- Hamilton H-238 watches