Instrument 556 A RS Watch 556.0141

The Watch

Founded in 1961, Sinn is a German watchmaking brand that produces exceptional, innovative, and technologically advanced timepieces. A reference in the world of professional precision watchmaking, its creations stand out for their accuracy, robustness, and timeless elegance. The 556.0141 watch houses one of Sinn's most iconic designs - one that never goes out of style and delivers outstanding legibility. Thoughtfully engineered for daily wear, it features a meticulously crafted case that balances elegance and durability. Its round shape is rendered in satin-finished stainless steel in a classic silver tone, making it easy to pair with any outfit. The gently curved lugs make for an exceptionally comfortable wear. The case measures 38.50 mm in diameter and 11 mm thick, weighing 65 g without the strap. The case is topped by a scratch-resistant sapphire crystal with a double anti-reflective coating for crystal-clear legibility. At 3 o'clock, the large screw-down crown, engraved with the brand's "S" logo and featuring a comfortable knurled grip, blends seamlessly with the case design and handles hands and date adjustment. The screw-down case back features a transparent sapphire crystal window with an interior anti-reflective treatment, giving you a front-row view of the movement and its finishing - including the gold-toned rotor engraved with the Sinn logo. Water resistant to 20 ATM, this timepiece is also resistant to low pressure and meets the technical water resistance requirements of DIN 8310.

The Dial

The clean, refined design of this dial makes it genuinely distinctive. Its surface is a deep matte black, providing a striking contrast with the white markers. The outer ring features a white minute track with bold graduations and stick indices for each hour - with 3, 6, 9, and 12 o'clock marked by large Arabic numerals. At the center, 4 hands take the stage: the hour and minute hands are wide and pointed, delivering sharp time-reading, and are coated with a luminescent treatment for easy visibility in any light. The red seconds hand adds a bold accent that contrasts beautifully with the rest of the dial. The stick indices share the same luminescent coating. A discreet date window sits between 4 and 5 o'clock with a black background to blend seamlessly into the dial. As a finishing touch, the Sinn logo is placed at 12 o'clock and "Made in Germany" is printed at 6 o'clock.

The Movement

This model is driven by a flawless automatic movement - specifically the SW200-1 caliber, fitted with 26 jewels and beating at 28,800 vibrations per hour. With a 38-hour power reserve, a seconds-stop function, and antimagnetic protection per DIN 8309, it delivers reliable three-hand analog display with date.

The Strap

This watch comes fitted with a vintage-inspired cowhide leather strap. In black, it is elevated by red stitching at the lugs and a matching pin buckle. Elegant and characterful, it complements the case aesthetic beautifully and harmonizes with the dial. With a lug width of 20 mm, it provides a comfortable and secure fit around the wrist.

Water Resistance

With a water resistance of 20 atmospheres - 200 meters - this model earns its "dive watch" title without question. Our watchmaking experts agree: it handles showers, baths, lap swimming, freediving, and recreational scuba diving with ease. That said, it is not intended for extreme deep-sea diving, where pressure would exceed its limits. For professional divers tackling serious depths, we recommend models rated at 30 atmospheres or above. Also, avoid operating the pushers or crown while submerged to maintain a perfect seal.