Seagull ST1901 Mechanical Movement Hand Wind
China Make Seagull ST1901 Mechanical Chronogarph Movement Hand Wind - Image 2
China Make Seagull ST1901 Mechanical Chronogarph Movement Hand Wind - Image 3

China Make Seagull ST1901 Mechanical Chronogarph Movement Hand Wind

$105.00
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Quantity Discount (%) Price
1 - 2 — $105.00
3 - 4 5 % $99.75
5 - 9 7 % $97.65
10+ 10 % $94.50
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Product Description

The Seagull ST1901 is a manual-winding mechanical chronograph movement, also known as the ST19 series. Based on the legendary Swiss Venus 175 with tooling acquired in the 1960s, it represents a historic milestone in Chinese watchmaking. It delivers reliable chronograph functionality with a column wheel and horizontal clutch, making it a favorite among homage watch builders and enthusiasts.

Features & Function

  • Manual-winding with smooth crown operation

  • Column wheel chronograph mechanism for precise start/stop/reset

  • Horizontal clutch and screw-mounted bridges for stability

  • Incabloc shock protection on balance staff and gear train

  • Sub-dials for 30-minute counter and small seconds

Specifications

  • Diameter: 30.4 mm (13¾ lignes)

  • Thickness: 5.8 mm (including hands)

  • Jewels: 22

  • Frequency: 21,600 vph (3 Hz)

  • Power Reserve: ~50h (chrono off) / ~45h (chrono running)

  • Accuracy tolerance: -10 to +40 sec/day (factory spec)

  • Winding: Manual

  • Hacking: No

  • Chronograph: Column wheel, horizontal clutch, 30-min counter

Applications

  • Chronograph homage watches (e.g., pilot, racing, vintage-style designs)

  • DIY watch builds and custom modding projects

  • Repair/replacement for Venus 175-based or ST19 series movements

  • Collector pieces celebrating Chinese horological history

FAQs

1. Is this a genuine Seagull movement or a copy?

It is a genuine Seagull movement, officially manufactured by Tianjin Seagull Watch Group, not a third-party counterfeit. It is based on the Venus 175 but is a licensed, legitimate production.

2. Is the quality comparable to the Swiss Venus 175?

It offers excellent value for the price but has lower finishing and slightly less strict QC than the original Swiss Venus. It remains reliable for regular use with proper care.

3. Will it fit my watch case designed for the Venus 175?

Yes, it shares the same dimensions (30.4mm diameter, 5.8mm thickness) and hand sizes (hour 2.0mm, minute 1.2mm, seconds 0.25mm) as the Venus 175, making it directly compatible.

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  • 3,000+ watch movements and parts in stock.

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  • Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.

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