NH35 vs NH34 GMT vs NH38 vs VK63: Differences in Seiko Mods

NH35 vs NH34 GMT vs NH38 vs VK63 in Seiko Mods

When choosing a Seiko Mod, the movement is one of the most important specifications. The movement defines whether the watch is automatic, GMT, Open Heart, or chronograph.

NH35 Movement

The NH35 is one of the most commonly used automatic movements in Seiko Mods. It is used in three-hand models with a date display and is common in styles such as Santos, Nautilus, Datejust, Royal Oak, Submariner, PRX, and Aquanaut.

  • Automatic movement.
  • Daily use.
  • Usually includes a date display.
  • Good option for a first Seiko Mod.

NH34 GMT Movement

The NH34 GMT is used in watches with a second time zone function. It is ideal for models such as Batman, Pepsi, Rootbeer, Sprite, Bruce Wayne, and other GMT configurations.

NH38 Movement

The NH38 is used in configurations where a more mechanical or visible aesthetic is desired, such as Open Heart or Skeleton.

  • Automatic movement.
  • Focused on open or visible design.
  • Used in special models.

VK63 Movement

The VK63 is a meca-quartz movement used in chronograph models, such as Daytona or Speedmaster.

Which one to choose?

If you are looking for a classic automatic watch, choose NH35. If you want a GMT function, look for NH34. For Open Heart or Skeleton designs, check NH38. If you want a chronograph, look for VK63.

Explore our catalog of custom Seiko Mods or check the guide for buying a Seiko Mod in Mexico.

Disclaimer: The availability of movements and configurations may vary depending on the model and available parts.

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