The Omega Speedmaster Broad Arrow 1957 (Ref: 321.93.42.50.13.001)

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Welcome to the RYBrandshop workshop diary. As a dedicated watch shop owner and enthusiast, there is nothing quite as rewarding as holding a legend that has been restored to its peak performance. Today, we are showcasing a true horological treasure: the Omega Speedmaster Broad Arrow 1957 (Reference: 321.93.42.50.13.001).

This is not just any Speedmaster; it is a 41mm masterpiece that pays homage to the very first 1957 model with its iconic broad arrow hands and sophisticated chocolate brown dial.

The Power of the Overhaul: Why Maintenance is Everything

In the world of high-end mechanical watches, "ticking" is not enough. To truly preserve a legacy, professional maintenance is mandatory. We are proud to share that this specific unit underwent a full professional overhaul on March 9, 2026.

Our master watchmakers performed a complete movement disassembly, ultrasonic cleaning, lubrication, gasket replacement, and rigorous waterproof pressure testing. The final technical results from our workshop speak for themselves:

• Accuracy: A stunning +6 seconds per day.
• Amplitude: A robust 301°, indicating a strong heart and perfect energy transfer.
• Beat Error: A perfect 0.0ms, ensuring the balance wheel swings with absolute symmetry.

When you purchase a serviced watch from us, you aren't just buying a pre-owned item; you are acquiring a precision instrument calibrated to provide decades of reliable service.

View high-resolution condition photos and the detailed grade report below.
Check our professional technical inspection and accuracy results below.

Versatility Refined: The "Aqua Terra" Appeal

Many collectors ask for a watch that transitions effortlessly from the boardroom to a weekend retreat. While the Omega Aqua Terra is often the benchmark for versatility, this Speedmaster Broad Arrow offers a compelling, vintage-inspired alternative.

The combination of the warm brown dial and the classic leather strap creates an aesthetic that feels at home under a tailored suit cuff or a casual cashmere sweater. Despite its sporty chronograph heritage, the 41mm case size and 13mm thickness provide a slim, elegant profile that rivals the everyday wearable charm of a modern sports-dress watch.

The Dealer’s Loupe: Identifying True Authenticity

For the discerning global collector, authenticity is the foundation of trust. When examining an Omega of this caliber, we look for the hallmarks of Swiss excellence:

• Movement Finishing: The automatic caliber exhibits crisp "Côtes de Genève" and circular graining (perlage). Authentic finishing reflects light in a way counterfeits simply cannot.
• Dial Texture: The sub-dials have a subtle, concentric "snailing" texture that is incredibly difficult to replicate with precision.
• Sapphire Clarity: The crystal provides a "floating" effect for the hands, achieved only through high-quality, anti-reflective sapphire glass.

The RYBrandshop Guarantee

At RYBrandshop, we prioritize transparency. This unit is rated as Grade AB (Excellent Condition). While the original leather strap shows honest signs of wear and minor peeling, the watch head itself remains in immaculate condition following its recent professional polish and cleaning.

This offering is a Full Set, including the genuine inner and outer boxes, warranty card, official tag, and guidebook. Invest in a watch that has been cared for by professionals who love the craft as much as you do.

View high-resolution condition photos and the detailed grade report below.
Check our professional technical inspection and accuracy results below.

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