# How to Adjust Different Watches Mod Straps (Step-by-Step Guide)

**By AdminMy Store** · 2026-02-26

![](https://cdn.shopify.com/s/files/1/0749/4929/6383/files/baa53f01267e155a51597072fb64260.jpg?v=1755873283)

### Getting the right fit for your watch is essential for comfort and style. Different Seiko mod straps use different adjustment methods — some use tiny screws, some use push pins, and some rubber straps need to be cut.

### Here’s a simple guide ： 

* * *

## 1\. Oyster Bracelet (Screw Pins)

-   Uses **screw pins**.
    
-   Place the bracelet on the holder block.
    
-   Use the **flat screwdriver tool** to turn the screw pin **counter-clockwise** until it comes out.
    
-   Remove or add links.
    
-   Put the pin back in and tighten **clockwise**.
    

![](https://cdn.shopify.com/s/files/1/0749/4929/6383/files/6.png?v=1755874421)

* * *

## 2\. Jubilee Bracelet (Screw Pins)

-   Uses **screw pins**.
    
-   Place the bracelet on the holder block.
    
-   Use the **flat screwdriver tool** to turn the screw pin **counter-clockwise** until it comes out.
    
-   Remove or add links.
    
-   Put the pin back in and tighten **clockwise**.
    

![](https://cdn.shopify.com/s/files/1/0749/4929/6383/files/5_1df8a223-18c9-40e6-9b08-f123770d8634.png?v=1755874492)

* * *

## 3\. Oak Bracelet (Screw Pins)

-   Also uses **screw pins**.
    
-   Place on the holder block.
    
-   Turn the screw out with the **flat screwdriver tool**.
    
-   Adjust links as needed.
    
-   Insert the screw pin and tighten back in place.
    

![](https://cdn.shopify.com/s/files/1/0749/4929/6383/files/4_c696862a-71e3-471b-892d-7068b07175fe.png?v=1755874532)

* * *

## 4\. Nautiko Bracelet (Push Pins)

-   This one uses **push pins** instead of screws.
    
-   Look for small arrows on the inside of the bracelet.
    
-   Place on the holder block with arrows facing down.
    
-   Use the pin tool and hammer to **knock the pin out** in the direction of the arrow.
    
-   Remove or add links.
    
-   Insert the pin back from the opposite side and tap in until secure.
    

![](https://cdn.shopify.com/s/files/1/0749/4929/6383/files/3_a808915f-592f-4b87-890a-5dc4c8b9187a.png?v=1755874534)

* * *

## 5\. Chrono-Tona Rubber Strap

-   First, try the **micro-adjustment holes** on the clasp.
    
-   Push the small pin out by hand or with the tool.
    
-   Move the clasp to another hole for a better fit.
    
-   If not enough, you’ll need to cut **the one side strap shorter**.  
    

![](https://cdn.shopify.com/s/files/1/0749/4929/6383/files/2_accc43e6-e2f0-495f-ae6a-f75a825bf865.png?v=1755874533)

* * *

## 6\. Aquamod Rubber Strap

-   The strap can **only be shortened by cutting**. Please measure carefully before trimming.
-   To remove the clasp: use a **spring bar tool** (or a thin pin/paperclip) to press the small spring bar that holds the clasp. Take it out gently and keep it safe.
-   Mark the strap evenly on both sides. Cut **a little at a time** with sharp scissors or a cutter, always keeping both sides equal.
-   Smooth the cut edge with fine sandpaper or a nail file.
-   Reinsert the strap into the clasp and push the spring bar back into place. Make sure it clicks securely.
-   **Tip:** Cut slowly and test after each cut. Once shortened, it cannot be made longer again.

![](https://cdn.shopify.com/s/files/1/0749/4929/6383/files/1_18db4202-6b3e-466e-b9d0-0952fa7846eb.png?v=1755874534)

* * *

## Final Tips

-   Adjust slowly and carefully — one step at a time.
    
-   Test the fit before cutting or removing more links.
    
-   After adjusting, pull firmly on the strap/bracelet to ensure everything is secure.
    
-   **Always place a thin transparent film (like plastic wrap) between the tool and the watch** to prevent scratches during adjustment.

---

> Source: [WATCHBRICK](https://seikomod.com.au/blogs/news/how-to-adjust-custom-watch-strap-guide)