A True Integrated Manufacture Mastering the Heart of Horology

In the world of fine watchmaking, few can claim the title of a true "Manufacture." Sea-Gull stands among the elite, possessing the rare capability to design, engineer, and produce mechanical movements entirely in-house. We represent a seamless bridge between the complex world of micro-mechanics and the art of complete watchmaking.

By controlling every step—from the smallest hairspring to the final hand-polished case—we ensure that every timepiece carrying the Sea-Gull name is a cohesive masterpiece of precision and reliability. Our vertical integration is not just a manufacturing process; it is our commitment to horological excellence.

SEA-GULL: Engineered from the Inside Out

While many watchmakers merely assemble, SEA-GULL creates. As a vertically integrated manufacture, we oversee every facet of the watchmaking process:

• In-House Mastery: From movement design and component fabrication to rigorous assembly.
• Broad Versatility: An extensive lineup, spanning accessible mechanical models to master-level complications.
• Global Influence: Our movements are the heartbeat of our own collections and the trusted choice for watchmakers around the globe.

We harmonize industrial capacity with technical depth, ensuring that every SEA-GULL timepiece is a masterpiece of precision engineering.

This combined identity—movement expertise paired with complete watchmaking—forms the foundation of SEA-GULL’s long-term strategy and shapes every timepiece we craft.

Exploring Watchmaking Mastery: Iconic High-Complication Calibers

Beyond industrial scale, SEA-GULL’s distinguished standing within modern watchcraft rests on its validated proficiency in manufacturing ultra-complex mechanical movements and complications at scale.

Premium SEA-GULL 1963

Leading this exceptional capability is the ST9250 grand complication movement — a fully integrated caliber that unites a tourbillon, perpetual calendar and minute repeater within one unified structure.

The ST9250 embodies SEA-GULL’s refined command of intricate mechanical synchronization, acoustic precision engineering, and perpetual calendar functionality. This remarkable feat cements the brand’s status among the world’s most distinguished movement artisans.

Crafted as a limited-production caliber, it stands not as a commercial offering, but as a powerful demonstration of SEA-GULL’s ultimate technical potential and watchmaking prowess.

3-in-1 Perpetual CalendarTourbillon Minute RepeaterMechanical Watch

The ST1961 split-second chronograph represents another milestone achievement, renowned for outstanding industrial adaptability among mainstream rattrapante calibers.Historically, split-second functions required intricate craftsmanship and substantial manufacturing costs. SEA-GULL’s ST1961 resolves this issue, achieving standardized production, long-term operational stability and universal compatibility—without sacrificing core mechanical precision and structural robustness.

70th Anniversary Rattrapante Split Second Chronograph Watch

The ST1901 hand-wound chronograph stands as one of SEA-GULL’s most historically significant calibers.Derived from the iconic Venus 175 framework acquired in the mid-20th century, it carries forward the legacy of a classic Swiss column-wheel chronograph while undergoing comprehensive industrial refinement.

Through years of iterative optimization, SEA-GULL has elevated this time-honored design into a highly reliable, mass-producible chronograph movement.For countless global watch brands, the ST1901 served as their first encounter with SEA-GULL’s exceptional horological expertise, solidifying the manufacturer’s worldwide renown in precision chronograph engineering and large-scale manufacturing.

Seagull 1963 Chronograph Watch Original Times Edition 40mm

In unison, these mechanical works are no mere isolated milestones, but clear proof of a persistent capability to industrialize sophisticated high‑complication watch design with uncompromised reliability.

From Horological Mastery to Scalable Production

Forged by decades of movement innovation and high-complication craftsmanship, SEA-GULL delivers a full portfolio of readily accessible, fully supported mechanical movement production lines for global partners.These refined calibers turn decades of technical heritage into practical, production-grade solutions tailored for contemporary watch creation.

These are our best-selling, immediately producible movement platforms, serving independent brands, OEM projects and custom watch creations globally.

• Multi-complication movements: Optimized for calendar features and complex functional designs
• Small seconds calibers: Praised for well-balanced composition and traditional styling
• Skeletonized movements: Highlighting internal mechanical details with open-work finishing
• Open-heart flywheel calibers: Creating distinctive visual flair without compromising structural durability
• Basic time-date movements: Stable, functional and ideal for daily wear timepieces
• Accessible tourbillon movements: Bringing iconic high-horology complications to broader applications

This curated selection fully showcases our comprehensive horological capabilities. Should you have unique technical specifications, require alternative calibers, or pursue fully bespoke projects, our professional team is ready to provide tailored movement solutions through direct consultation.

We structure our movement services to cater to both B2B partners and individual B2C customers alike.For watch brands, independent designers and professional horologists, we deliver reliable movement options optimized for mass production, personalized customization and stable long‑term supply cooperation.For watch enthusiasts and collectors, we offer genuine SEA-GULL mechanical movements, crafted to strict in-house manufacturing standards and rooted in decades of professional watchmaking heritage.

By bridging advanced watchmaking expertise with accessible and expandable production lines, SEA-GULL continues to operate as a movement manufacture capable of supporting a wide range of watchmaking projects—today and in the future.

Future-Ready Watchmaking | A Forward-Thinking Manufacture

SEA-GULL is far more than a single-focused player in modern watchmaking.As a globally recognized mechanical movement specialist, it continuously upgrades movement design, industrial capacity, and high-end complication technology.In parallel, SEA-GULL has matured into a full watch brand, seamlessly combining independent movement production and finished watch assembly under one integrated ecosystem.

This balanced development complements, rather than replaces, its foundational movement business.By offering transparent, systematic movement supply alongside its branded watch lines—including landmark pieces like our 70th Anniversary Rattrapante Limited Edition—SEA-GULL strengthens its global partnership value for independent creators, new microbrands, and traditional watch factories.

No matter in standard caliber supply, customized movement cooperation, or landmark high-complication research, SEA-GULL adheres to the same core mission:pushing mechanical horology forward with solid technical strength, scalable production, and sustainable solutions.

Driven by the rising global demand for mechanical watches, SEA-GULL will further invest in R&D, manufacturing upgrades and international cooperation.The goal is to keep traditional mechanical craftsmanship accessible, innovative, and ready for the future.