Seagull ST1901 Movement Guide: Features, History & Best Watches 2025 | ZY Chrono

The Seagull ST1901 movement represents one of the most significant achievements in Chinese horology, offering Swiss-quality chronograph functionality at an accessible price point. This comprehensive guide explores everything you need to know about the ST1901, from its historical significance to the best watches featuring this remarkable movement in 2025.

What is the Seagull ST1901 Movement?

The Seagull ST1901 is a mechanical chronograph movement manufactured by Tianjin Seagull Watch Group, China’s oldest watch manufacturer. Based on the legendary Venus 175 caliber, the ST1901 has become the benchmark for affordable mechanical chronograph movements worldwide.

Key Specifications

• Type: Manual-winding chronograph movement
• Jewels: 21 jewels
• Frequency: 21,600 vibrations per hour (3 Hz)
• Power Reserve: 40+ hours
• Functions: Hours, minutes, small seconds, chronograph
• Diameter: 28.5mm
• Thickness: 6.5mm

History and Development of the ST1901

The ST1901’s story begins in the 1960s when Seagull acquired the tooling and rights to the Venus 175 movement. Originally developed by Venus Watch in Switzerland, the 175 was renowned for its reliability and precision.

Evolution Timeline

1963: Seagull begins production based on Venus 175
1980s: Refinements and improvements implemented
2000s: Modern ST1901 variant introduced
2010s: Widespread adoption by international brands
2020s: Continued refinement and quality improvements

Technical Features and Performance

Movement Architecture

The ST1901 features a column wheel chronograph design, traditionally found only in high-end Swiss movements. This design provides smoother operation and more precise timing control compared to cam-actuated chronographs.

Finishing and Decoration

Modern ST1901 movements showcase impressive finishing for their price point:

• Circular graining on the main plate
• Blued screws for aesthetic appeal
• Côtes de Genève striping on bridges
• Beveled edges on chronograph components

Best Seagull ST1901 Watches at ZY Chrono

Premium ST1901 Collections

ZY Chrono offers an carefully curated selection of timepieces featuring the authentic Seagull ST1901 movement. Each watch undergoes rigorous quality control to ensure optimal performance.

SUGESS Panda Chronograph

The SUGESS Panda Chronograph represents exceptional value in mechanical chronograph watches. Featuring the reliable ST1901 movement, this timepiece offers:

• Classic panda dial configuration
• 316L stainless steel case
• Sapphire crystal with anti-reflective coating
• Genuine leather strap
• Water resistance to 50 meters

Beijing Watch Chronograph Series

Beijing Watch’s chronograph collection showcases the ST1901’s capabilities in dress watch applications:

• Elegant sunburst dial finishes
• Applied indices and markers
• Slim profile design
• Multiple color combinations available

ST1901 vs. Swiss Alternatives

Performance Comparison

Feature	Seagull ST1901	ETA 7750	Sellita SW500
Price Range	$200-800	$800-2000	$600-1500
Power Reserve	40+ hours	42 hours	46 hours
Jewels	21	25	25
Frequency	21,600 vph	28,800 vph	28,800 vph
Winding	Manual	Automatic	Automatic

Maintenance and Care Guide

Regular Maintenance

To ensure optimal performance of your ST1901 chronograph:

• Wind daily: The manual-winding mechanism requires daily winding
• Avoid overwinding: Stop when resistance is felt
• Service interval: Professional service every 3-5 years
• Chronograph usage: Avoid continuous chronograph operation

Common Issues and Solutions

Chronograph hand jumping: Usually indicates need for lubrication
Poor timekeeping: May require regulation
Sticky pushers: Professional cleaning recommended

Why Choose ST1901 Watches in 2025?

Value Proposition

The ST1901 movement offers compelling advantages for watch enthusiasts:

• Mechanical authenticity: True column-wheel chronograph design
• Historical significance: Direct lineage to Venus 175
• Accessible pricing: Mechanical chronograph under $500
• Serviceability: Parts and service widely available
• Collectibility: Growing appreciation among collectors

Future of the ST1901 Movement

Seagull continues investing in ST1901 development, with recent improvements including:

• Enhanced shock resistance
• Improved finishing quality
• Better chronograph accuracy
• Extended power reserve variants

Buying Guide: What to Look For

Authenticity Verification

When purchasing ST1901 watches, verify:

• Movement markings: Genuine ST1901 inscription
• Serial numbers: Seagull factory markings
• Case quality: Proper finishing and materials
• Dealer reputation: Authorized retailers only

Price Considerations

Entry level: $200-400 (basic cases, simple dials)
Mid-range: $400-600 (premium finishing, better materials)
High-end: $600-800 (luxury cases, special editions)

Conclusion

The Seagull ST1901 movement stands as testament to Chinese horological achievement, offering genuine mechanical chronograph functionality at unprecedented value. Whether you’re a seasoned collector or new enthusiast, ST1901-powered watches provide an authentic gateway into mechanical chronograph ownership.

At ZY Chrono, we carefully select only the finest examples of ST1901 timepieces, ensuring each watch meets our stringent quality standards. Experience the heritage and precision of this remarkable movement through our curated collection.

Explore More ZY Chrono:

• Browse ST1901 Watch Collection
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• Explore Mechanical Watch Guide