Sinn

556 A RS

Reference Number :

556.0141

Series : Tool Watch

Retail: $1,433

(As of: 02/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Sinn. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThe Sinn 556 A RS is like a stealth fighter for your wrist, except instead of missiles, it's packing pure, unadulterated timekeeping precision. The satinized stainless steel case gives it this purposeful, no-nonsense vibe, like it's ready for anything. That matte black dial, with its crisp white indices and numerals, is all about maximum legibility – no squinting here, even when the lights go down. That awesome and solitary pop of color with a bold red second hand, sweeps along with the other hands, all powered by that reliable SW200-1 movement, beating away inside is the engine. With its 20-bar water resistance, this is an everyday wear that you don't need to worry about. Sapphire crystal, anti-reflective coatings, that's some space aged technology, that gives it some protection. The 556 A RS has that vibe of a perfect blend of form and function.

DescriptionThe Sinn 556 A RS, reference number 556.0141, is a meticulously engineered timepiece built upon a foundation of robust functionality and clear legibility. The case, with a diameter of 38.5 mm and a thickness of 11 mm, is constructed from satinized stainless steel, imparting a subdued, tool-watch aesthetic. The screw-fastened case back and screwable crown contribute to a water and pressure resistance rating of 20 bar, meeting the technical specifications stipulated in DIN 8310 standards for water resistance. This construction also ensures resistance to low-pressure environments. A band lug width of 20mm allows for a variety that matches the wearer's style. The dry weight, exclusive of the strap, is a balanced 65 grams.

Powering the timepiece is the Sellita SW200-1, a self-winding mechanical movement renowned for its reliability. This caliber features 26 bearing jewels, facilitating smooth operation and reduced wear. Operating at a frequency of 28,800 semi-oscillations per hour (4 Hz), the SW200-1 provides a consistent and accurate timekeeping experience. A seconds stop function, also known as hacking, allows for precise time setting. The movement is also anti-magnetic, conforming to the DIN 8309 standard. Displaying the information produced by this movement are; hours, minutes, a strikingly red seconds hand, and a date display. The watch face showcases a matte black dial, onto which numerals and indices are applied, each coated with a luminescent material for optimal visibility in dim conditions. Both the hour and minute hands are similarly treated with luminescent coating, enhancing readability. Protecting the dial is a sapphire crystal, treated with an anti-reflective coating on both sides to minimize glare. The transparent case back is crafted from sapphire crystal, but features anti-reflective properties on the interior surface only, presenting a view of the intricate mechanics.

GenderUnisex

SignaturesSinn

Country of OriginGermany

Case Size38.5 mm

MovementAutomatic

CaliberSW200-1

FunctionsHours, Minutes, Seconds, Date

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal

CrownScrew Down