Movements

Specs:

• Caliber number: Seiko NH34A (aka NH34 or 4R34)
• 41+ hours of power reserve
• Movement type: automatic
• Frequency/Vibrations per hour: 21600 BPH
• Accuracy: -20~+40 sec per day
• Hack-second or stop-second feature allows you to set the time precisely
• 24 Jewels
• Function: GMT and Date Complications
• Winding Direction: Clockwise
• Diameter: 27.40 mm

Compatible with all of our NH34 GMT hands on site!

*Includes a spacer that sits between the movement and dial (NH34 dial spacer)

*Dial center hole needs to be 2.9mm (2.88 to be exact) to accommodate for this movement. You can file the center hole of an NH35 dial with Jewelers Files

Please read our GMT tutorial for more detail

• Manufacturer: Seiko (aka Seiko Instruments, SII)
• Caliber Number: NH36 (aka NH36A)
• Complication: Day & Date at 3:00 Crown at 3.8
• Movement Type: Automatic
• Diameter: 27.4mm
• Hight: 5.32mm
• Jewels: 24
• Vibrations Per Hour: 21,600 bph (3Hz) (6 beats per second)
• Power Reserve: ~41 hours
• Winding Direction: Bi-directional (Magic Lever)
• Black Date & Date Wheel 3:00

Extra Stem Included

* Must Use With NH36 case back, unless you swap the grey spacer for the black 7s26 spacer. All work should be preformed by a professional.

* Compatible with all models that accept 7s26, nh35, nh36, 4r35, 4r36, and all variants of the NH movement family.

NH38 Movement Specs

• Manufacturer: Seiko (aka Seiko Instruments, SII)
• Caliber Number: NH38 (aka NH38A)
• Complication: Open Heart
• Movement Type: Automatic
• Diameter: 27.4mm
• Hight: 5.32mm
• Jewels: 24
• Vibrations Per Hour: 21,600 bph (3Hz) (6 beats per second)
• Power Reserve: ~41 hours
• Winding Direction: Bi-directional (Magic Lever)
• Extra Stem Included

* Must Use With NH36 case back, unless you swap the grey spacer for the black 7s26 spacer. All work should be preformed by a professional.

* Compatible with all models that accept 7s26, nh35, nh36, nh38, nh70, 4r35, 4r36, and all variants of the NH movement family.