Sinn 556 A RS Automatic – Mint Full Set - SOLD

German engineering at its finest. The Sinn 556 A RS has earned a loyal following for good reason—it's clean, purposeful, and built to be worn every day. With its perfectly balanced 38.5mm case, exceptional legibility, and distinctive red seconds hand, the 556 A RS is one of the most versatile sport watches on the market.

This example is presented in mint condition and includes the complete factory package. The stainless-steel case, sapphire crystal, and exhibition caseback are exceptionally clean. The original Sinn leather strap shows only minor signs of wear and remains in excellent overall condition.

On our timegrapher, the watch performed beautifully at +1 second per day, with a 278° amplitude and 0.1 ms beat error, reflecting excellent mechanical health.

Included

• Original Sinn presentation box
• Original documentation
• Original Sinn leather strap
• Original signed Sinn buckle
• Original spring bar tool
• Full set

Specifications

• Reference: 556 A RS
• Case: 38.5mm stainless steel
• Movement: Swiss automatic
• Crystal: Sapphire front and exhibition caseback
• Water Resistance: 200 meters
• Crown: Screw-down
• Dial: Matte black with applied indices and signature red seconds hand
• Made in Germany

Whether you're searching for a daily wearer, your first German tool watch, or simply one of the most respected modern three-hand automatics, the Sinn 556 A RS delivers outstanding quality, timeless design, and exceptional value.

Every watch offered by Redline Watch Co is carefully inspected, honestly represented, and selected for its character, quality and value. This watch has been carefully inspected and is guaranteed authentic. All components, markings, and movement characteristics are consistent with known examples of this model.