The Ingersoll 520 is a Chinese-made automatic movement with 20 jewels, based on the Hangzhou HZ2350 caliber. It includes hand-winding capability and offers a 30-hour power reserve. The movement is specified to maintain accuracy within -30 to +30 seconds per day when worn under normal conditions. This caliber is used in the Ingersoll Gun model IN1628BK.
Last updated 29 Apr 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
20 jewels
Power Reserve
30h
Display Type
Analog
FEATURES
Hand Winding
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
In ProductionBASED ON
Hangzhou Watch Company HZ2350CALIBER FAMILY
ingersoll-520COUNTRY
ChinaFOR WATCH DEALERS
Sell watches powered by the 520?
Inventory, Chrono24 and eBay sync, and VAT invoicing. Dealer tools are built on this database.