Family: 6R28,800 vph (4 Hz)
The 6R20 is an automatic movement manufactured by Seiko Instruments Inc., measuring 27.4mm in diameter and 6.15mm thick with a frequency of 28,800 bph. It belongs to the 6R family of in-house calibers that succeeded the 7S series. The movement remains in production and serves as the basis for several Presage and Prospex models.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Frequency
28,800 vph (4 Hz)
Diameter
27.4mm
Height
6.15mm
Display Type
Analog
COMPLICATIONS
DateDayPower Reserve Indicator
FEATURES
Hacking Seconds
More Seiko Instruments Inc. movements
QUICK FACTS
FOR WATCH DEALERS
Sell watches powered by the 6R20?
Inventory, Chrono24 and eBay sync, and VAT invoicing. Dealer tools are built on this database.