Watchmaking kit - Diver One GMT - Bi-colour bezel - Ref. 23118
UK tax included. International orders are sold excl. VAT. Please see shipping & tax information below.
automatic gmt watch movement
text and video instructions
full watchmaker tool kit
We are here to help
Building an automatic watch is a challenging task, but with our complete sets you will receive the prepared components for assembly, a full tool kit and detailed step by step instructions. All you need is a steady set of hands and a bit of patience, to complete this kit!
The D1 GMT is a GMT diver watch with an NH-34A automatic watch movement. Inside the 41mm stainless steel case, you will find an easy-to-read diver dial with date window and silver polished hands with the additional coloured GMT hand to track a second time zone. Hour markers and hands are filled with extra strong lume to increase legibility in low-light environments. The watch comes either with a fully water resistant, soft and comfortable FKM strap or a stainless-steel bracelet.
Containing all parts, tools and instructions our kits are an ideal start into the world of horology. Learn more about the way a watch ticks, the origins of watchmaking and how to assemble your own automatic watch at home.
All our kits contain a detailed instruction booklet as well as access to our step-by-step video guides available on our homepage to assist you throughout the assembly.
Our kits are available as Full watchmaking kits or as No tools variants:
- Full watchmaking starter kit includes watch components (case, dial, hands, movement, and strap), a full tool kit (watch hand levers and press, movement cushion, friction ball, cleanroom products, dust blower, Rodico, precision tweezers, table mat, screwdriver (pilot watches only), watchmaker’s loupe and headwire) and detailed instructions (printed booklet in each kit and access to our step-by-step video guides via our homepage)
- No tools kits include only the watch components and the instructions (we recommended to start with a full DIY kit to ensure you have all the right tools for your first assembly)
Safety notice: Please note that these kits are not toys and are unsuitable for children of any age. They contain small parts which can be swallowed as well as sharp tools. Please always handle the tools (especially tweezers) with utmost care and caution. Keep the ends away from your eyes, skin or any other person or animal.
Size
Width (bezel) - 40.8mm
Lug to Lug - 48.5mm
Height - 12.9mm
Weight
105g (FKM)
155g (Steel bracelet)
Case
Stainless steel Diver case with exhibition case back (water-resistant to 10 ATM)
Bezel
120-click unidirectional bezel with 24 hour/GMT numerals
Crystal
Scratch-resistant sapphire glass
Dial
Classic, matte dial with applied, silver polished hour markers (lume filled)
Hands
Silver polished diver hands (lume filled) and red GMT hand (lume filled)
Movement
TMI(SEIKO) NH-34A automatic GMT watch movement with 41 hours of power reserve, 24 jewel bearings, 4th hand GMT and date function.
Strap
Black FKM strap (125/75mm) with quick-release spring bars or stainless steel bracelet (micro adjustment clasp, screwed-in links)
Timeless Classic
The Diver One - GMT
The Diver One is a traditional diver watch, designed for underwater activity with a water-resistant case and clear, high readable components. Now available as GMT version with a fourth hand to track an additional time zone in a 24-hour cycle. The 120-click unidirectional bezel now includes a set of 24 hour numerals to track a third time zone or use as guide for the GMT hand. With its see-through case back, you will also be able to see your movement in action and observe what you built.
Your kit components
GMT Diver Dial
Matte 28.5mm diver dial with applied indices, diver hands (silver polished, lume filled) and GMT hand (lume filled).
Steel Diver Case
41mm stainless steel case with sapphire crystal, see-through case back, 120-click 24-hour bezel and screw down crown.
NH-34A GMT
Automatic Japanese watch movement with 24 jewel bearings, 41 hours power reserve, and GMT and calendar complication.
Steel or FKM
Completed by a soft, fully water resistant FKM strap (quick release spring bars) or a solid stainless-steel bracelet.
Free & Fast delivery
Shipping Policy
Our kits are shipped from our London workshop with Royal Mail and we aim to send them within 1-2 business days.
International orders are shipped via UPS or a similar courier. Orders are shipped excl. UK tax (deducted at check-out). Please note that customers will remain liable for local taxes and/or import duty for deliveries outside the UK.
For more information, please follow the link below to view our shipping policy.
Come by and say hello
Pick-up in our workshop
If you are based in London or drive through, you are also welcome to come to your workshop and pick up your kit in person. We will need your order in advance to arrange your kit for you, but you are of course welcome to take a look around while you are here.
Please note our workshop is strictly appointment only and only open on the weekends.