Zenith Chronomaster El Primero Open 'On the Fly' Extension Link

Tools Required

• 1.4 mm flat-blade watchmaker’s screwdriver
• Push-pin or spring-bar tool
• (Optional) Purple Loctite 222 low-strength threadlocker

Installation Steps

1. Remove the clasp from the bracelet

• Use a push-pin or spring-bar tool to depress the spring bar that connects the clasp to the bracelet.
• Detach the clasp completely.

2. Remove the original connector link

• The connector link is the last link on the bracelet, attaching directly to the clasp.
• Use the 1.4 mm screwdriver to remove the screw securing it to the bracelet.
• Set the original connector link aside.

3. Install the Steel Reef On The Fly Extension Link

• Position the extension link where the connector link was removed.
• Use the provided screw to attach it to the bracelet.
• (Optional) Apply a very small drop of Loctite 222 to the screw threads before tightening.

4. Reattach the clasp

• With the extension link in the open position, slide the clasp’s connector into the extension link’s folding arms.
• Use the spring-bar tool to depress the spring bar and secure the clasp back onto the bracelet.

About Bracelet Fit

You may need to adjust your bracelet attachment point along the clasp’s micro-adjustment holes to achieve your perfect fit.

We take pride in the exceptional quality and craftsmanship of our products, each inspired by OEM standards. Our Satisfaction Guarantee is designed to ensure that if your product is defective or not as described, you can return it for a full refund or exchange. This approach allows you to experience our high-quality products with the assurance that we stand by their description and functionality.

We are not affiliated, associated, endorsed by, or in any way officially connected with any watch brands. Our parts are aftermarket accessories, designed with quality and precision, that may be compatible with and fit a variety of watch models. Additionally, be aware that installing our products may void any active warranties or guarantees on your watch.