SINCLAIR HARDING (UK) LIMITED

What SINCLAIR HARDING (UK) LIMITED does

Sinclair Harding (UK) Limited is a privately held, family-owned British manufacturer of fine mechanical clocks and watches, headquartered in Emley, Huddersfield, West Yorkshire. Founded in 1967 by William Sinclair and Mike Harding in Cheltenham, the company was acquired by Robert Bray in 1995 when it was on the verge of closing. Under Bray's 30-year leadership, Sinclair Harding has produced over 1,000 bespoke mechanical clocks, including skeleton clocks (Three Train, Great Wheel, Condliff, Rosemary), John Harrison-inspired sea clocks, Congreve rolling-ball clocks, table regulators, carriage clocks, and longcase clocks, each designed, machined, finished, and assembled in-house at the Yorkshire workshop. Since 2017 the company has achieved full vertical integration, including in-house fusee chain production (acquired from Mavis and David in 2014), bell casting, electroplating (Gold 23.5 Ct, Platinum, Nickel), CNC turning and milling, gear cutting, wire erosion, and hand finishing.

The company's revenue model rests on four streams: bespoke clock commissions with customer involvement at every design stage; the 2025-launched Sinclair Harding Bray Watch (ETA 6498-based, £4,500, limited edition of 30 pieces per year); sub-contract precision engineering services offered to external clients for over 25 years; and The Makers Shop supplying raw materials and components (fusee chains at £3.30/cm, bluing salts, brass sheet, etc.) to horologists. Go-to-market combines direct-to-consumer bespoke commissions, workshop tours in Huddersfield, presence at exhibitions such as Baselworld, organic social (Facebook, Instagram), and a curated network of authorised luxury retailers globally (Pragnell, Wempe, The Hour Glass, Pisa Orologeria, and others across 10+ countries).

The business serves High Net Worth Individuals and Collectors seeking heirloom-quality mechanical timepieces, plus heritage/institutional clients needing clock renovations. The team numbers 11 people, predominantly family members including Caron Bray (Company Secretary), Stuart Bray (Design and Production Manager), Domonic Bray (QC), Adrian Bray (Clockmaker), and Jack Bray. Robert Bray was appointed President of the British Horological Institute in 2025, and Sinclair Harding holds AHCI membership, reinforcing its position within the global independent watchmaking community.

Name

SINCLAIR HARDING (UK) LIMITED

Legal name

Sinclair Harding (UK) Limited

Website

https://clockmakers.com

Company type

Private

Founded year

1967

Operating status

Operating

Short description

Sinclair Harding (UK) Limited is a family-owned British manufacturer of bespoke mechanical clocks and watches, producing skeleton, sea, carriage, and longcase clocks in-house at its Huddersfield workshop for High Net Worth collectors globally, with distribution through luxury retailers and a new wristwatch line launched in 2025.

Ownership category

akta.pro rank

Product category

Luxury Mechanical Clocks

NAICS

Machine Shops (33271)

SIC

Watches, Clocks, Clockwork Operated Devices/Parts (3873)

akta.pro primary industry

Clocks & Desk/Travel Timepieces (CRAKADAI)

akta.pro secondary industries

Complications & Haute Horlogerie (CRAKADAG), Luxury Mechanical Watches (CRAKADAA)

Keywords

• Bespoke mechanical clocks
• Luxury mechanical watches
• Precision horological manufacturing
• Skeleton clockmaking
• Clock components supply

Headquarters

HQ city

Emley

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Bespoke Clock Manufacturing: Design, manufacture, finishing and assembly of bespoke mechanical clocks including skeleton clocks, sea clocks, carriage clocks, and longcase clocks. Each clock crafted to individual customer requirements with involvement at every stage.
2. Sinclair Harding Bray Watch: Luxury mechanical watches built around ETA 6498 movement with in-house manufactured components including case, dial, bezels. Priced at £4,500, produced in limited editions of 30 pieces.
3. Sub-Contract Engineering Services: Precision engineering services to external clients for over 25 years. Specialising in one-off prototypes and small batch quantities. Capabilities include CNC turning, milling, wire erosion, gear cutting, heat treatment, electroplating. Materials include mild steel, stainless steel, carbon spring steel, aluminium, brass, phosphor bronze, plastic.
4. Clock Components and Materials: Sale of clock components and raw materials including main springs, fusee chains (£3.30 per cm), bells, polishing compounds, bluing salts, brass sheet and bar, stainless steel, PTFE, as well as bespoke flight cases.

Pricing tiers

Go-to-market motion4 records

Distribution channels7 records

Marketing channels5 records

Core offering

Sinclair Harding (UK) Limited designs, manufactures, finishes and assembles fine mechanical clocks (skeleton clocks, sea clocks, carriage clocks, table regulators, longcase & bracket clocks, and bespoke mechanical sculptures) and a luxury mechanical wristwatch (Sinclair Harding Bray Watch) entirely in-house at its Huddersfield workshop. In addition, the company runs a sub-contract precision engineering service (CNC turning, milling, gear cutting, wire erosion, electroplating) for external clients and supplies clock-making components and raw materials through The Makers Shop.

Product overview

Sinclair Harding (UK) Limited is a UK-based manufacturer of fine mechanical clocks and watches. The company operates a single unified product portfolio centered on high-end horological creations, with the majority of production (case, dial, movement components, finishing, plating) conducted in-house at their Huddersfield workshop. The core offering comprises mechanical clocks across various styles including skeleton clocks (Three Train, Great Wheel, Condliff, Rosemary), sea clocks (John Harrison-inspired), architectural clocks (Congreve, La Colonne du Temps), and regulators, complemented since 2025 by the Sinclair Harding Bray Watch — the company's first wristwatch built on the ETA 6498 movement. The company also offers sub-contract engineering services and a makers shop for horological materials. All products feature precious metal plating (Gold, Platinum, Rose Gold), with extensive hand-finishing and customisation options.

Differentiator

Problem solved

Functional benefit

Brands

• Sinclair Harding Bray Watch: A wristwatch launched in 2025 built around the ETA 6498 movement, featuring hand-finished solid silver dial with linen texture, manufactured in-house including case, dial, and bezels from 904L stainless steel.

Products and services

• Sinclair Harding Bray Watch Mechanical wristwatch built around the ETA 6498 movement. Case and bezels machined from 904L stainless steel, with hand-finished solid silver dial with linen texture and the majority of the watch (case, dial, seconds dial, main bezel, seconds bezel, crown) manufactured in-house. Customisable dial finish (Silver or Patina), indicator colours (Gold, Rose Gold or Platinum), hand colours (Chrome, Blue) and strap options (Brown, Light Brown, Black or Green Leather; Black/Blue/Green Sailcloth). Fixed price £4,500.
• Sinclair Harding H1 Clock in homage to John Harrison's original H1 marine timekeeper. Movement mounted on a granite base suspended on pivots with a counter-balanced weight and DC motor providing a gentle rocking motion. 8-day power reserve. Designed for collectors of historically inspired horology.
• John Harrison Sea Clocks Range of sea clocks inspired by John Harrison's marine chronometers. Features unique Grasshopper escapement, Invar pendulum, and chain-driven fusee. Available in 'His' and 'Hers' styles with optional hand-painted moonphase dial. For collectors of historically inspired timepieces.
• Three Train Skeleton Clocks Chiming skeleton clock with three mainsprings, three fusee chains, and 8-day power reserve. Features deadbeat escapement, Invar pendulum, and pin drum for Westminster, Whittington or St Michael chimes. Heirloom-quality collectors' clocks.
• Rosemary Miniaturised version of the Great Wheel Skeleton Clock with integral bevelled glass case and base. Features Graham Deadbeat escapement, silk suspension, Invar pendulum, and 8-day power reserve. For collectors seeking compact skeleton clocks.
• Condliff Clocks Single and Two Train skeleton clocks based on James Condliff's 1860 Liverpool designs. Features graceful faceted brass frames, passing strike mechanism, and 8-day power reserve with stop-work. For traditional clock collectors.
• Sun & Moon Clocks Clock with hand-painted sunrise/sunset dials and a moonphase dial showing waxing and waning over 29.5 days. Features 8-day power reserve and hand-painted day/night scenes by Keith Warrington. For collectors of decorative astronomical timepieces.
• Great Wheel Skeleton Clocks French-inspired skeleton clocks available in 'Y' frame and 'Arch' frame designs. Features Graham Deadbeat escapement, silk suspension pendulum, 288-tooth Great Wheel, and 8-day power reserve. Rose Gold filled numerals introduced in 2025. For traditional skeleton clock collectors.
• Congreve Clocks Clock using William Congreve's rolling ball escapement principle patented in 1808. Features a brass track with a ceramic ball, spring-driven movement through fusee, and 8-day power reserve. A statement piece for collectors interested in unusual escapement designs.
• Table Regulators Classic clock with double three-legged gravity escapement (similar to Westminster/Big Ben). Features high Q spherical pendulum, 8-day movement, and aluminium case with anodised finish. For collectors seeking precision timekeepers.
• Longcase & Bracket Clocks Traditional longcase and bracket clocks. Longcase clocks feature 8-day key-wound weight-driven movements with hour striking or quarter chiming on eight bells. Bracket clocks have triple fusee spring-driven movements. For traditional clock collectors and interiors.
• La Colonne du Temps Mechanical sculpture developed in collaboration with designer Jörg Hysek. Features an innovative digital display through independently rotating carriages showing hours and minutes, retrograde seconds hand, and 8-day power reserve. A flagship contemporary piece for collectors of modern horological art.
• Carriage Clock Portable clock with heavily modified Gold-plated constant force Swiss lever escapement at 14,400 beats per hour. Features 8-day power reserve, hidden stop work mechanism, and hand-finished Breguet-style hands. For collectors of portable timepieces.
• Pre-Owned Clocks Pre-owned Sinclair Harding clocks available for purchase, including Three Train Skeleton Clocks and other models with full service by Sinclair Harding before sale. For collectors seeking secondary-market pieces.
• Sub-Contract Engineering Services Precision engineering services to external clients for over 25 years, specialising in one-off prototypes and small batch quantities. Capabilities include CNC turning (DMG MORI SEIKI CTX 310, Spinner SB, HAAS OL1), CNC milling (HAAS VF2-SSYT with 5th axis, DMG MORI SEIKI MILLTAP), Mikron 79 gear hobbing (0.3–1 mod), Sykes V4 gear shaping, Joemars AWT3S wire erosion, fibre and UV laser engraving, polishing, heat treatment, and Gold (23.5 Ct), Platinum and Nickel electroplating. Materials include mild steel, stainless steel, carbon spring steel, aluminium, brass, phosphor bronze and plastic. For industrial clients in oil & gas, optical systems and precision engineering sectors.
• The Makers Shop Supplier of clock-making materials and components including main springs, fusee chains (£3.30 per cm), cast bells, polishing compounds (e.g., Luxor £6), bluing salts (£13.50 per 250g), brass sheet and bar, stainless steel, PTFE, and bespoke flight cases. Also offers fusee chain repairs from £48 and spherical weight platforms at £210. For hobbyist and professional clockmakers.

Quantifiable outcome

• Over 1,000 clocks produced in 30 years
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Jörg HysekflagshipStrategic or Co-development Partner · 1 January 2017Collaboration began at Baselworld 2017 for the development of 'La Colonne du Temps' - a mechanical sculpture featuring innovative digital display of time in column form. Jörg Hysek, renowned avant-garde designer with significant influence in Swiss watchmaking, provided close guidance on design, manufacture, finishing and assembly. Mark II version released after further year of development.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Bremont: British luxury mechanical watch manufacturer known for aviation and dive watches, assembled in the UK with global retail distribution. Comparable as a British mechanical watch brand with premium positioning, though at significantly larger scale and with broader price-point reach than Sinclair Harding.
• Graham (Graham London): British-Swiss watch brand with heritage dating to 1695, producing limited-edition mechanical watches with skeleton and chronograph complications. Comparable as a skeleton-clock and chronograph specialist with similar positioning around traditional watchmaking techniques and limited annual production.
• F.P. Journe: Renowned Swiss independent watchmaker and AHCI founding member producing limited-edition haute horlogerie with strong secondary market appreciation. Comparable to Sinclair Harding as an AHCI-affiliated independent with bespoke positioning and exceptional craftsmanship credentials, though at much larger scale.
• Vianney Halter: French independent watchmaker and AHCI member known for futuristic, science-fiction-inspired haute horlogerie in extremely limited editions. Comparable as an AHCI peer with similar small-scale bespoke production philosophy and premium pricing for collector-focused pieces.
• Roger W. Smith: British independent watchmaker based in the Isle of Man, AHCI member, and one of the few living watchmakers to make watches entirely by hand in the British Horological tradition. Directly comparable to Sinclair Harding as a small-team British independent combining traditional craftsmanship with serial production, and an AHCI peer.
• Garrick Watchmakers: Norfolk-based British independent watchmaker producing limited-edition mechanical watches with in-house manufactured components. Direct peer in the small-team British independent mechanical watchmaking space, with similar emphasis on bespoke commissions and UK craftsmanship.
• Thomas Mercer & Co. British heritage brand revitalized by independent watchmakers to produce marine chronometers and skeleton clocks from its Yorkshire/UK base. Direct peer in the niche British mechanical clockmaking revival space, with similar heritage branding and small-scale bespoke positioning.

Broad incumbents

• A. Lange & Söhne: German haute horlogerie manufacturer known for in-house movements, traditional finishing, and limited annual production. Comparable to Sinclair Harding in craftsmanship philosophy (in-house everything, traditional techniques, premium pricing) but at significantly larger scale with broader product portfolio.
• Vacheron Constantin: Swiss haute horlogerie manufacturer with a heritage stretching back to 1755, known for ultra-complicated timepieces and Métiers d'Art craftsmanship. Comparable to Sinclair Harding in the high-complications space (Sinclair's three-train, fusee, deadbeat escapement pieces) but operates at vastly larger scale with global brand recognition.
• Parmigiani Fleurier: Swiss independent haute horlogerie manufacturer known for restoration expertise and in-house manufactured movements with traditional finishing. Comparable to Sinclair Harding in craftsmanship philosophy and emphasis on restoration heritage, though at larger scale with broader product portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SINCLAIR HARDING (UK) LIMITED