The Mechanical Diver Watchmaking Kit – Pepsi (£299.99) is our most premium build-your-own watch kit, designed and made in Surrey, UK: you assemble a classic blue-and-red diver around a Miyota 8215 Japanese automatic movement, with rotating bezel, screw-down crown, sapphire glass, calendar dial and lume hands, and every tool, video guidance and free expert support in the box.
No experience needed · All tools included · Free expert support
Build your own mechanical diver in the iconic blue-and-red ‘Pepsi’ colourway — a rugged classic that’s as at home 100 m under the ocean as it is at a formal dinner. The diver is the style made famous by James Bond and Jacques Cousteau, and a staple of any watch lover’s collection. With a screw-down crown, rotating bezel and water resistance to 100 m, it’s the most premium watch in our range. This all-in-one kit contains every watch part, every tool and full video instruction to build yours from scratch — and if you’re looking for a unique gift for someone special, you’ve found it.
What makes us different?
Watchmaking from the heart of Surrey, UK — this isn’t a watch you buy, it’s a watch you build. Every part and every tool is in the box, and our step-by-step video guidance assumes no experience at all: you’ll build your watch around the renowned Miyota 8215 automatic movement, case it up and size the strap, with real watchmaker’s tools in your hands from the first step. We pride ourselves on an experience that educates as well as entertains — and our expert support team is on hand, free, whenever you need us.
What’s in the box
- Miyota 8215 automatic mechanical movement
- Calendar dial
- Stainless steel case with rotating bezel and chain link strap
- Lume watch hands
- Screw-down crown
- Precision tweezers
- 2-in-1 chain tool
- Precision screwdriver
- Finger cots
- Eye loupe
- Dust blower
- Movement holder
- Step-by-step assembly video
Stuck? We’ll help — free
Every builder gets free access to our technical support team — 99.6% of customers complete their build with our help. If a step has you puzzled, get in touch and we’ll walk you through it.
At a glance
- Kit type: full watch kit — you build a complete, wearable automatic diver
- Colourway: Pepsi (blue-and-red bezel)
- Movement: Miyota 8215 automatic (self-winding) mechanical movement — a Japanese calibre
- Dial & hands: calendar dial · lume watch hands
- Case: stainless steel; 39 mm bezel diameter, 44 mm total case width plus crown; sapphire glass; rotating bezel; screw-down crown; screw-down case back fitted by hand (no press needed)
- Water resistance: case rated to 100 m when correctly assembled; we recommend a pressure test before swimming
- Strap: stainless steel chain-link strap, 20 mm lug width, sized with the included 2-in-1 chain tool
- Skill level: beginner — no experience needed (a more involved build than the Skeleton)
- Typical build time: about the same as the Skeleton — 2–3 hours
- Tools included: precision tweezers · 2-in-1 chain tool · precision screwdriver · finger cots · eye loupe · dust blower · movement holder
- Instructions: step-by-step assembly video (Instructions page)
- Support: free technical support — 99.6% of customers complete their build with our help
- Warranty: 12 months on faulty parts
- UK delivery: free · Royal Mail Tracked 24 · 1–2 working days · same-day dispatch before 3 pm
- Returns: free within 30 days of your order
- Made in: designed and made in Surrey, UK
Frequently asked questions
Do I need any experience to build the Diver?
No. The video guides assume you have never touched a watch movement before and walk you through every step. It is our most premium kit and a slightly more involved build than the Skeleton, so set aside unhurried time and follow the video.
How long does the Diver take to build?
About the same as the Skeleton — 2–3 hours. Work at your own pace — the videos pause when you do and the kit packs away between sessions.
What tools are included?
Everything you need: precision tweezers, a 2-in-1 chain tool for sizing the strap, a precision screwdriver, finger cots, an eye loupe, a dust blower and a movement holder. The Diver has a screw-down case back that you fit by hand, so no case press is needed.
What movement does the Diver use?
The Miyota 8215 — a widely used, well-regarded Japanese automatic (self-winding) mechanical movement.
Is it really water resistant?
The case has a screw-down crown, screw-down case back and rotating bezel and is rated to 100 m when correctly assembled. Because you build it yourself, we recommend a pressure test before swimming with it.
What size is the watch, and can I adjust the strap?
Stainless steel case with a 39 mm bezel and a total width of 44 mm plus the crown, sapphire glass, on a stainless steel chain-link strap with a 20 mm lug width; the 2-in-1 chain tool in the box lets you remove links to fit your wrist.
Is it a good gift?
Yes — one of our most popular gifts for watch lovers, and the most premium watch in our range: the classic diver style made famous by James Bond and Jacques Cousteau, built by the person you give it to.
Support, warranty, delivery and returns?
Free technical support for every builder (99.6% complete their build with our help) and a 12-month warranty on faulty parts. Free UK delivery by Royal Mail Tracked 24 in 1–2 working days, same-day dispatch before 3 pm; Europe 3–5, USA 4–7, Australia/rest of world 5–11 working days with duties and taxes included. Free returns within 30 days of your order.
