Seiko manufactures its own automatic movements, notably the 4R35 and 4R36 calibers in the Seiko 5 line, and the prestigious 6R15 in higher-end models. The brand also produces its exclusive Spring Drive movements, which combine the precision of quartz with the mechanical beauty of an automatic movement, achieving an accuracy of ±1 second per day.

Seiko's most popular collections include:

• Seiko 5: the most affordable automatic watch collection
• Prospex: Professional diving and sports watches
• Presage: Classic elegance with textured dials
• Astron: High-tech solar-powered GPS watches

Each collection is designed for different lifestyles and budgets, while maintaining the Japanese brand's signature quality.

Hardlex crystal is a hardened mineral glass patented by Seiko that offers greater scratch resistance than standard mineral glass. In its higher-end models, Seiko uses sapphire crystal with an anti-reflective coating, particularly in the Prospex and Presage lines, ensuring maximum durability and visual clarity.

Seiko dive watches offer different levels of water resistance depending on the model. The iconic Seiko Turtle and Samurai models are water-resistant to 200 meters, while professional models like the Marinemaster reach 300 meters. All models comply with the ISO 6425 standard for professional dive watches.

World Watch Museum in Madrid is an official Seiko watch retailer with an online store and shipping throughout Spain. We offer the full range of Seiko collections with a 2-year official warranty, authorized technical service, and the opportunity to view the models in our physical store in Madrid.