Description
Arnold & Son has joined forces with The Limited Edition, the London retailer specialising in independent watchmaking, for a dress watch with a genuinely clever party trick. The HM London Skyline, announced on 12–13 June 2026, paints the British capital across a blue mother-of-pearl dial — Tower Bridge in the foreground, the Palace of Westminster, Big Ben and St Paul's Cathedral behind. Switch off the lights, and a second, modern London appears: the Shard, the Gherkin and the London Eye, printed in tone-on-tone Super-LumiNova that is invisible by day.
The piece commemorates two milestones at once — Arnold & Son's 260th anniversary and The Limited Edition's 10th — and is sold exclusively through the London retailer. It is priced at GBP 15,000 in stainless steel and GBP 23,500 in 18k red gold (both excluding taxes), positioning it as an accessible entry into miniature-artwork dials backed by a true in-house movement.
Design
The case is classic HM-line minimalism: 39.5mm across and just 7.82mm high, fully polished in either stainless steel or 18k red gold, with a domed sapphire crystal treated with double-sided anti-reflective coating. The dial artwork sits under an ethereal blanket of painted clouds on a pale blue sky, with time read off discreet dot markers and slim sword-shaped hands tipped in Super-LumiNova. The sapphire caseback is engraved with the individual serial number x/20 and The Limited Edition's star logo, and reveals the radially striped, hand-chamfered movement with blued screws. An ocean-blue alligator strap with light blue stitching and a pin buckle matching the case metal completes the watch.
Specifications
- Model: Arnold & Son HM London Skyline x The Limited Edition
- Case diameter: 39.5mm
- Case thickness: 7.82mm
- Case material: 18k red gold or stainless steel, polished
- Crystal: domed sapphire with double-sided AR coating
- Caseback: sapphire, engraved x/20 serial and The Limited Edition star logo
- Water resistance: 30m
- Dial: blue mother-of-pearl, miniature artwork of London's historic skyline (Tower Bridge, Westminster, Big Ben, St Paul's), modern landmarks (Shard, Gherkin, London Eye) in tone-on-tone Super-LumiNova
- Movement: calibre A&S1001, in-house, manual winding, 30mm x 2.7mm, 21 jewels
- Functions: hours, minutes
- Frequency: 21,600vph (3Hz)
- Power reserve: 90 hours, double barrel
- Finishing: Geneva stripes, circular graining, snailed wheels, hand-chamfered bridges, blued screws
- Strap: ocean-blue alligator leather, pin buckle in matching metal
- Limited edition: 20 pieces total across both metals per SJX (caseback engraved x/20); note that Monochrome's spec sheet lists 20 pieces per metal — the two sources differ on this point
- Price: GBP 15,000 (steel), GBP 23,500 (red gold), excluding taxes
- Availability: exclusively from The Limited Edition, London — announced June 2026
What's Exciting
The lume "Easter egg" is the smartest landscape-dial idea of the season. Skyline dials are usually static postcards; here the dial tells a story about time itself — Georgian London by day, 21st-century London after dark — using nothing but a printing technique. It elevates what would otherwise be a pretty but conventional metiers d'art piece into something with wit.
The engineering underneath deserves equal billing. The A&S1001 is a genuine in-house calibre measuring just 2.7mm thick, yet its twin barrels store a 90-hour power reserve — figures that let Arnold & Son keep the whole watch under 8mm. At GBP 15,000 in steel, that combination of an ultra-thin manufacture movement, hand finishing and a miniature-artwork dial undercuts most comparable pieces from bigger maisons, which is exactly the kind of value-for-money in-house engineering worth flagging.
History
John Arnold (1736–1799) was one of the most important English watchmakers of the 18th century, a pioneer of the marine chronometer whose workshops stood in London. The modern Arnold & Son, revived in Switzerland and today owned by Japan's Citizen group alongside movement maker La Joux-Perret, channels that heritage into high-end watches powered by roughly twenty in-house calibres to date. The HM line is its dress-watch backbone, built around the ultra-thin A&S1001.
The Limited Edition, founded ten years ago, has become the UK's premier specialist retailer for independent and niche high-end brands. With Arnold & Son marking its 260th anniversary in 2026 and both names deeply rooted in London, a dial portrait of the city — old and new — is a fitting joint celebration.

