31 jewels28,800 vph (4 Hz)
Last updated 15 Sep 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
31 jewels
Frequency
28,800 vph (4 Hz)
Display Type
Analog
FEATURES
Small Seconds
QUICK FACTS
FOR WATCH DEALERS
Sell watches powered by the RJ2901?
Inventory, Chrono24 and eBay sync, and VAT invoicing. Dealer tools are built on this database.