Diver One GMT - Steel edition - Ref. 231205
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If you are visiting us from outside the UK, prices are displayed excl. VAT and regional taxes and duty may be due and payable by the customer. Please see our full shipping & tax information below before ordering.
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 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.
Size
Width (bezel) - 40.5mm
Lug to Lug - 47.6mm
Height - 12.5mm
Weight
101g (FKM)
149g (steel bracelet)
Case
Stainless steel Diver case (41mm size) with see-through case back (water-resistant to 10 ATM) and fixed bezel
Crystal
Scratch-resistant sapphire glass
Dial
Classic, matte dial with applied hour markers (lume filled)
Hands
Silver polished diver hands (lume filled) and red or orange 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 rubber strap (125/75mm) with quick-release spring bars or stainless steel bracelet (micro adjustment clasp, screwed-in links)
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.
Your watch components
Exceptional legibility
The Diver One dial is defined by strong contrasts and clean, high visibility elements. The matte surface is accentuated with silver, polished hourmarkers filled with lume and a matching set of polished hands.
Highly Durable
The 41mm stainless steel case made of 316L stainless steel is equipped with a scratch resistant sapphire crystal, a see-through case back, 120-click matte black ceramic bezel and screw down crown to ensure water resistance up to 10 ATM.
NH-34JB Movement
This automatic GMT watch movement is manufactured in Japan by TMI, a subsidiary of Seiko, and includes 24 jewel bearings, a power reserve of 41 hours, sweeping seconds hand and GMT and calendar complication.
Strap or Bracelet
With 20mm lug size, the case can use a range of straps! Available for this kit are a flexible, soft FKM strap (with quick release spring bars) or a solid, stainless steel bracelet with screwed-in links and micro adjustment clasp.
Everything you need in one box
Our watchmaking Starter kits
Designed for you, our kits contain everything you need to build one of our watches at home including the full set of components above, a complete watchmaking tool kit and detailed step by step instructions (included as print version and with access to our online videos).
Shipping Information
Our kits are shipped from our London workshop with Royal Mail. We aim to send all orders within 1-2 business days. However, in exceptional circumstances it might take slightly longer to get your kit on the way.
There are no fees, taxes or other costs when buying from the UK.
International orders are shipped via UPS or a similar courier within 2-3 business days.
If you purchase from outside the UK or ship to an address outside the UK, you order will not include UK taxes.
Please note that customers will remain liable for local taxes and/or import duty for deliveries outside the UK. Import payments and process are handled by the courier company and we have no influence over this process. Incurred costs on your behalf are not refundable.
For more information, please review our shipping policy.
You can contact us through our contact page! We will be happy to assist you.