How to Build a Pepsi GMT Watch From Scratch
The Most Iconic Seiko Mod Build
The Pepsi GMT is the most recognizable watch mod in the world. The red and blue bezel is instantly identifiable, and the NH34 GMT movement gives you real dual time zone functionality. Building one from scratch is easier than you think.
Here is a complete parts list and step-by-step guide from Funny Items.
What You Need
- GMT case with Pepsi bezel — 40mm, with 24-hour rotating bezel
- NH34 GMT dial — Cut for 4 hands
- GMT hands set — Hour, minute, second, and GMT hand
- NH34 movement — The GMT calibre from Seiko
- Bracelet or strap — 20mm, steel or rubber
- Basic tools — Case back opener, hand press, tweezers
Step-by-Step Build Guide
Step 1: Install the Dial
Place the NH34 GMT dial onto the movement. Make sure the dial feet align with the movement holes. The date window should line up with the date wheel at 3 o'clock.
Step 2: Install the Hands
Using a hand press tool, install the hands in order: hour, minute, GMT, second. The GMT hand goes on the 4th post. Press each hand straight down with even pressure.
Step 3: Test the Hands
Set the time to 12:00 and check alignment. The GMT hand should point to 12 on the 24-hour scale. Wind the crown to make sure all hands move freely.
Step 4: Case the Movement
Place the movement into the Pepsi GMT case. Insert the crown and stem. Screw down the case back.
Step 5: Attach the Bracelet
Use a spring bar tool to attach the stainless steel bracelet to the case lugs.
All parts available at Funny Items: 40mm Bidirection GMT Case, NH34 GMT Dial, GMT Hand for NH34
Frequently Asked Questions
How long does it take to build a Pepsi GMT?
For a first-time builder, about 1-2 hours. With experience, 30-45 minutes.
Do I need to buy the NH34 movement separately?
Yes. Funny Items sells movements and all parts separately so you can customize your build.
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