Tap the image to enlarge
Jacob & Co Epic X Bridges
Ref. EX120.10.AB.AB.B10AA
The Epic X collection launched in 2016 as Jacob & Co.'s attempt to build a watch around a geometric idea rather than a conventional case architecture. The X was chosen deliberately — as form, as structure, as organising principle — and the Bridges variant carries that further by making the movement's two vertical bridges the literal backbone of the design, with the calibre JCAM45 developed specifically for it. There is no mainplate; every component hangs from those bridges, which means that what you see through the dial is not decoration applied over a movement but the movement itself, nothing hidden. The Clou de Paris engraving on the bridges — outlined in the same blue PVD that rings the inner bezel — is where the finishing concentrates. Bevelled edges run throughout the calibre, alternating between polished and matte surfaces to give the openworked interior a legibility it would otherwise lose to its own complexity. The four X-shaped lugs are angular and flush-tipped, continuing the skeleton structure outward into the case rather than sitting as separate attachments, and the blue honeycomb rubber strap picks up the colour theme without competing with the dial.
- Reference
- EX120.10.AB.AB.B10AA
- Brand
- Jacob & Co
- Case size
- 44mm
- Case material
- Stainless steel
- Case shape
- Round
- Crystal
- Sapphire
- Movement
- Manual
- Calibre
- JCAM45
- Functions
- Skeleton dial
- Water resistance
- 100m
- Bracelet / strap
- Rubber strap
- Strap colour
- Blue
- Clasp
- Buckle
- Lume
- Luminous
- Retailer
- Mappin & Webb
Additional specifications
- Power reserve
- 48 hours
Learn more about Jacob & Co
Jacob Arabo emigrated from Uzbekistan to New York as a teenager, trained in jewellery design, and opened his own business at nineteen. He built a reputation through the 1990s designing pieces for hip-hop artists and became known as Jacob the Jeweler, and in 2002 he launched a watch brand.
The Five Time Zone watch that established it was as much a statement as an instrument: a central dial for local time surrounded by four subdials for other cities, heavily set with diamonds. It became ubiquitous in music videos and defined a category of watch that prioritised visual impact over horological restraint.
The company then did something less predictable. Rather than remaining a jeweller casing bought movements, Jacob & Co commissioned genuinely extreme complications from Swiss constructors. The Astronomia, launched in 2014, mounts a triple-axis tourbillon, a rotating magnesium globe, and a spinning diamond on arms that revolve around the dial — the entire mechanism in constant motion. The Twin Turbo Furious combines a double triple-axis tourbillon with a minute repeater and a decimal chronograph.
These are among the most mechanically ambitious watches made anywhere, whatever one makes of the aesthetic. The Bugatti Chiron collection, with a working miniature sixteen-cylinder engine on the dial, is the same idea applied to automotive partnership.
The company remains privately held.
- 2002
- Jacob Arabo launches the watch brand.
- 2002
- The Five Time Zone watch defines the early style.
- 2014
- The Astronomia introduces a triple-axis rotating movement.
- 2019
- The Bugatti Chiron collection features a working engine on the dial.
Also in 4 collections
This watch appears in Back in Stock (4,405), Stainless Steel Watches (2,927), Watches 44mm and Over (781) and Skeleton Watches (291).
Temporarily out of stock
Mappin & Webb is not currently taking orders for this reference. Last listed as available on 17 October 2026. Stock is checked nightly and this page updates when it returns.
What the specifications mean
Strengths
- 100m water resistance covers swimming and watersports
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
Worth knowing
- 44mm sits at the larger end
Jacob & Co Epic X Bridges alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | EX120.10.AB.AB.B10AA | 3715-260/CARB | 103610 |
|---|---|---|---|
| Price | £28,500 | £24,390 | £26,200 |
| Case size | 44mm | 43mm | 40mm |
| Water resistance | 100m | 50m | 30m |
| Movement | Manual | Manual | Manual |
| Strap | Rubber strap | Leather strap | Titanium bracelet |
| Power reserve | 48 hours | 96 hours | 192 hours |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 100m it is rated for swimming and snorkelling, though not for diving.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
No. It is hand-wound, so it needs winding every day or two but never a battery.
Quartz, automatic and solar comparedHow long does it run for when it's not worn?
About 48 hours fully wound — enough to survive a night off the wrist, but not a full weekend.
Is it a men's or women's watch?
Listed as men's.
More Jacob & Co watches like the Epic X Bridges
In stock, and close on style and price
