Some specifications for this reference are on file; the record is incomplete.
Arnold & Son · Perpetual Moon
Perpetual Moon
Ref. Perpetual Moon
currentModernPartially documentedLast reviewed Not yet reviewed
Missing informationCore fields not yet documented for this reference: Case diameter, Caliber, Production, Water resistance, Dial
Reference photography not yet on file
The claim is a moonphase whose gearing drifts by a day only after a very long period — accuracy quoted in the hundreds of years. That is a gearing problem rather than a marketing one: the precision comes from the tooth counts, which are physical and countable through the display back by anyone prepared to do it.
Some specifications for this reference require verification against manufacturer documentation.
At a glance
- Brand
- Arnold & Son
- Collection
- Perpetual Moon
- Reference
- Perpetual Moon
- Production
- Modern
- Caliber
- Manual winding
- Case material
- Steel, gold and titanium executions