For over seven decades, SEA-GULL has played a central role in mechanical watchmaking, evolving from a historic movement manufacture into a modern brand capable of delivering both advanced calibers and complete mechanical timepieces. With deep roots in movement engineering and large-scale industrial production, SEA-GULL occupies a unique position in today’s global watchmaking landscape.
SEA-GULL’s strength lies in its integrated approach. The brand designs and manufactures its own mechanical movements while also translating that technical foundation into finished watches across a wide spectrum—from accessible mechanical models to high-complication horology. This dual capability allows SEA-GULL to control every critical stage of watchmaking, from movement architecture and component fabrication to final assembly and quality assurance.
Today, SEA-GULL movements power not only the brand’s own watch collections, but also support a broad ecosystem of global watchmakers. At the same time, SEA-GULL continues to expand its presence as a complete watch brand, demonstrating that industrial scale, technical depth, and finished-watch craftsmanship can coexist within a single manufacture.
This combined identity—movement expertise paired with complete watchmaking—forms the foundation of SEA-GULL’s long-term strategy and underpins everything the brand creates.
Demonstrating Technical Depth: Iconic High-Complication Movements
SEA-GULL’s standing in modern watchmaking is built not only on scale, but on its proven ability to industrialize some of mechanical horology’s most demanding complications.
At the pinnacle of this capability stands the ST9250 grand complication movement, an integrated caliber combining a tourbillon, perpetual calendar, and minute repeater within a single architecture. The ST9250 exemplifies SEA-GULL’s mastery of complex mechanical coordination, acoustic engineering, and long-term calendar logic—an achievement that places the manufacture firmly among the world’s elite movement developers. While produced in limited quantities, this caliber serves as a clear statement of technical ceiling rather than commercial intent.
Seagull Calibre ST9250
Equally significant is the ST1961 Rattrapante (split-seconds) chronograph movement, widely regarded as one of the most accessible and industrially viable split-seconds calibers in the world. Rattrapante chronographs are traditionally associated with extreme complexity and cost; ST1961 redefined that perception by making the complication reproducible, stable, and suitable for broader watchmaking applications without compromising its mechanical integrity.
Seagull Calibre ST1961
Among SEA-GULL’s most historically influential calibers, the ST1901 manual-wind chronograph movement holds a special place. Based on the Venus 175 architecture acquired in the mid-20th century, ST1901 represents the continuation and industrial evolution of a classic Swiss column-wheel chronograph design. Through decades of refinement, SEA-GULL transformed this heritage into a stable, mass-produced chronograph movement. For many international watchmakers, ST1901 was their first introduction to SEA-GULL’s movement capabilities, establishing the manufacture’s reputation in both chronograph engineering and large-scale production.
Seagull Calibre ST1901
Together, these movements reflect not isolated achievements, but a consistent ability to translate high complication watchmaking into reliable, industrial reality.
From Technical Mastery to Available Production Lines
Building on decades of movement development and high-complication expertise, SEA-GULL offers a range of mechanical movement production lines that are actively available and supported for global customers today. These calibers translate the manufacture’s technical foundation into practical, production-ready solutions for real-world watchmaking.
The following movement lines represent our most commonly supplied and readily deployable platforms, widely used across independent brands, OEM projects, and custom-built watches:
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Multifunctional movements, designed for calendar and complication-forward designs
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Small seconds movements, favored for their balanced layout and classical proportions
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Skeleton movements, showcasing mechanical architecture through openworked construction
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Open-heart flywheel movements, offering dynamic visual interest while retaining structural stability
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Hands-date movements, providing reliable everyday functionality
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Entry-level tourbillon movements, making one of watchmaking’s most iconic complications more accessible
Seagull Movement Categories
These selections represent a curated portfolio of our capabilities. For clients with specific technical requirements, alternative calibers, or bespoke project needs, additional movement solutions can be discussed directly with our team.
Our movement business is structured to support both B2B and B2C customers. For brands, designers, and professional watchmakers, we provide movement solutions suitable for series production, customization, and long-term supply planning. For individual enthusiasts and collectors, we offer access to authentic SEA-GULL mechanical movements backed by the manufacture’s production standards and technical 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.
Looking Forward: A Manufacture Built for the Future of Watchmaking
SEA-GULL’s role in modern watchmaking has never been limited to a single identity. As one of the world’s most established mechanical movement manufacturers, the manufacture continues to advance movement design, industrial capability, and high-complication development. At the same time, SEA-GULL is evolving into a brand that brings this engineering expertise directly into complete watchmaking, bridging movements and finished timepieces under one integrated system.
This dual focus is not a shift away from movement manufacturing, but a strategic extension of it. By maintaining an open and structured movement business while expanding its presence as a watch brand, SEA-GULL reinforces its position as a long-term technical partner to the global watch industry—supporting independent watchmakers, emerging microbrands, and established manufacturers alike.
Whether supplying production-ready calibers, collaborating on project-based movement solutions, or showcasing the limits of mechanical complexity through landmark developments, SEA-GULL remains committed to one principle: advancing mechanical watchmaking through engineering depth, manufacturing scale, and sustainable access.
As global interest in mechanical watches continues to grow, SEA-GULL will continue to invest in movement innovation, production infrastructure, and international cooperation—ensuring that authentic mechanical watchmaking remains both achievable and future-facing for generations to come.
Business Inquiries & Partnerships
For brand collaborations, or movement wholesale or retail inquiries, we welcome you to connect with us through the following channels:
Email: marketing@seagullwatch.com
WhatsApp: SEA-GULL WATCH OFFICIAL
Facebook: SEA-GULL WATCH
Instagram: seagullwatch_official
