Seiko Mods refer to the customisation of Seiko watches, allowing enthusiasts to create unique, personalised timepieces. Modifications can range from simple changes, like swapping out the strap, to more complex alterations, such as changing the dial, hands, bezel, or even the internal movement.

Watch Modifications , in general, involve altering various parts of a watch to enhance its appearance, functionality, or both. This practice is popular among watch enthusiasts who want to tailor their timepieces to their tastes and needs.

Dials: Customize the face of the watch with different colors, designs, or luminescent markers.
- Hands: Change the hour, minute, or second hands for a new look or better readability.
- Bezels: Replace the bezel with one made of a different material or design.
- Straps: Switch to straps made of leather, metal, silicone, or other materials.
- Crystals: Upgrade to sapphire crystals for enhanced scratch resistance.
- Movements: Improve accuracy or add features by upgrading the internal movement.