====== Seiko 7R ======
The **7R** family of [[Seiko]] calibres use the company's [[Spring Drive]] technology.

===== Overview =====
The 7R family includes the high-end 7R68 Spring Drive movement as well as the elite [[Seiko Credor]] [[grande complication]] movements.

The **7R68** is a Spring Drive movement with [[power reserve indicator]], 48 hour power reserve, and hour, minute, and second sweep hands and a date window. It contains 30 jewels.

The Credor Sonnerie and Minute Repeater are hand built at Seiko's Micro Artist Studio at Shiojiri.

The **7R06** was used in the [[2006]] [[Seiko Credor Spring Drive Sonnerie]] (GBLQ998). Only 5 examples were produced. Complications include [[sonnerie]] and [[power reserve indicator]]. A standard crown is found at 3 00 with a button at 8 00 setting hour chime or silence, as indicated on the rear at 6 00. There are 617 parts to the movement, 88 jewels, and a dedicated sonnerie [[barrel]]. The sonnerie performs an hourly strike or a strike every three hours.

The **7R11** appeared in [[2011]] on the [[Seiko Credor Spring Drive Minute Repeater]] (GBLS998). Just 3 examples were created in 2011, though more are available on request. It uses a decimal system for the repeater, chiming out hours, tens of minutes, and single minutes separately. The calibre includes 660 parts, 112 jewels, and has a power-reserve of 72 hours. It is 36.6 mm in diameter and 7.8 mm thick.

The **7R14A** was used in the [[2018]] [[Seiko Credor Eichi II]]. It has 41 jewels despite being a simple movement with hours, minutes, seconds, and power reserve indicator on the reverse side.

===== Applications =====
  * 7R06
    * Credor Spring Drive Sonnerie (GBLQ)
  * 7R08
    * Credor Masterpiece (GBLR)
  * 7R11
    * Credor Spring Drive Minute Repeater (GBLS)
  * 7R14
    * Credor Masterpiece (GBLT)
  * 7R87
    * Credor Node and Signo (GBLP, GCLP)
  * 7R88
    * Credor Node and Signo (GALH, GBLH, GCLH)
  * 7R99
    * Credor Signo (GBLJ)


{{tag>Seiko_calibres Movements Manual_winding_movements Grande_complication_movements}}