Watchmaking kit - GMT Bronze Diver (CuSn8) - Ref. 23115
UK tax included. International orders are sold excl. VAT. Please see shipping & tax information below.
Automatic watch movement
Text and video instructions
Full watchmaker tool kit
We are here to help
START YOUR WATCHMAKING JOURNEY WITH THE BRONZE DIVER
The Bronze Diver comes in a bronze case made of a strengthened copper alloy with 8% tin (and 92% bronze/copper), commonly known as CuSn8. Over time the case will change its colour and develop a beautiful and unique patina. The case is completed by a a unidirectional 120-click bezel with bi-colour GMT insert, scratch resistant sapphire crystal and a screw down crown to ensure the water resistance of your watch.
The kit features a matte black GMT dial with a polished, gold coloured hour markers (lume filled) and matching lume filled diver hands with a fourth GMT hand with a red tip. Underneath the dial, the reliable NH-34A GMT automatic watch movement will ensure precise time keeping of your watch across two timezones!
BRONZE CASES - Please read before ordering
As this is a solid bronze case, please note that when the case arrives it will be of a rose golden colour and develop a patina over time. There might already be some traces of oxidisation noticeable on the case - any differences will smooth out very quickly. Solid bronze can cause a skin reaction, if it is in contact over a long period of time. Using a stainless steel case back (as we do in our kit), greatly reduces the contact to your skin, but if you notice any issues, please stop wearing your watch.
Containing all parts, tools and instructions our kits are an ideal start into the world of horology. Learn more about the concept of time, the way a watch ticks, and how to assemble your own automatic watch at home.
Your kit contains detailed printed instructions as well as access codes to our step-by-step video guides available on our homepage (click here for an example) to assist you through 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) - 40.5mm
Lug to Lug - 47.8mm
Height - 13.6mm
Weight (approx.)
120g (FKM)
105g (Leather)
Case
Real bronze (CusN8) Diver case (41mm size) with solid steel case back (water-resistant to 10 ATM)
Bezel
120 click bezel (uni-directional) in matte black or red/black colour
Crystal
Scratch-resistant sapphire glass with date cyclops
Dial
Matte black diver GMT dial with gold colour, polished hour markers (lume filled)
Hands
Gold polished diver hands (lume filled) / Red GMT hand (lume filled)
Movement
TMI(SEIKO) NH-34A automatic GMT watch movement with 41 hours of power reserve, 24 jewel bearings, calendar function, fourth hand GMT complication and hacking seconds feature
Strap
Black, embossed FKM rubber strap (125/75mm) or soft Italian leather (120/80mm - manufactured in Spain) with quick-release spring bars and bronze buckle
Bronze Diver - GMT
With a case made out of CuSn8, this watch will noticeably age and develops a patina over time, unique to each watch. Combined with the NH-34 GMT movement and golden accents, this is a truly exceptional watch, creating its own story.
Your Kit components
Luminous Diver Dial
Classic matte black diver dial with gold polished hourmarkers and hands to match the bronze colour of your case. Both (hourmarker and hands) are luminous for better visibility.
CuSn8 CAse
With its warm hue, the bronze case is the most important feature of this kit. Aging over time and developing its patina, the case sits comfortably on your wrist with 41mm size.
NH-34A
Automatic Japanese watch movement with 24 jewel bearings, 41 hours power reserve, and GMT and calendar complication.
FKM or Italian leather
Pair the Bronze Diver with a fully water resistant FKM strap or a soft Italian Leather strap (20mm) - both with quick release spring bars and bronze buckle.
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.
Swing by and say Hello
In-store Pickup
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.