Seiko 4R35 Automatic Movement - Gold Rotor - CT536
Seiko 4R35 Automatic Movement - Gold Rotor - CT536 - Image 2

Seiko 4R35 Automatic Movement – Gold Rotor – CT536

$145.00

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The Seiko 4R35 movement is an automatic watch movement. It’s considered an upgrade from the 7S26 movement, offering features like hacking (stopping the second hand for precise time setting) and hand-winding. The 4R35 is used in various Seiko watches, including the Seiko 5, cocktail time series, and divers watches. You can also use this in your Seiko mod. An upgraded version of the NH35 movement (higher quality parts).

Key Features:
  • Automatic Movement:

    The watch is powered by the natural movement of your wrist, winding the mainspring. 

  • Hacking and Hand-Winding:

    The 4R35 has the ability to stop the second hand for precise time setting and can also be manually wound by turning the crown. 

  • Power Reserve:

    The 4R35 has a power reserve of around 40 hours, meaning it can keep running for that long even if you don’t wear it. 

  • Accuracy:

    The stated accuracy of the 4R35 is between +45 to -35 seconds per day.

  • 21,600 Beats Per Hour:

    The movement beats at 21,600 vibrations per hour, which is the same as the 7S26 movement. 

24 Jewels:
  • The 4R35B variant has 24 jewels, while the 4R35A variant has 23 jewels.
  • Date Display:
    It typically has a date display at the 3 o’clock position.
  • comes with white date wheel. We have black date wheels in our shop if needed.
  • comes with full length stem.

Specs:

Manufacturer Seiko
Caliber Number 4R35, 4R35A, 4R35B
Movement Type Automatic
Diameter
 27.4mm (casing 27mm)
Thickness
 5.32mm
Jewels 24 23 (see below)
Vibrations Per Hour
 21,600 bph
Lift Angle
 52 or 53 degrees (see below)
Power Reserve
 ~40 hours
Hand Windable? Yes
Hand Winding Direction
 Clockwise
Rotor Direction
 Bi-directional (Magic Lever)
Hacking? Yes
Anti-Shock System
 Seiko Diashock
Regulator System
 ETACHRON
Functions Hours, minutes, central seconds, date calendar at 3:00
Country of Manufacture Japan
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