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Discover › Brands › Sinn › 556a
Sinn

556a

38.5mm Popular Model Good Value Consistent Pricing
Low $1,088
Median $1,200
High $1,300
Search 556a Listings

The Sinn 556 A gets its character from four large Arabic numerals, a matte-black dial, and hands that make reading the time almost instantaneous. It’s the more instrument-like sibling of the baton-index 556 I, with a satin-finished steel case that feels purposeful without demanding much wrist space.

The standard 556 A keeps the display monochrome; the 556 A RS adds a red seconds hand if you want one sharp interruption. The date sits between four and five, preserving the numeral layout but introducing an asymmetry worth deciding whether you enjoy. Examples can carry either the ETA 2824-2 or SW200-1; neither changes the watch’s essential character. More important to the wearing experience is the 38.5mm case: compact enough for everyday use, yet the broad dial opening keeps those numerals from feeling crowded.

MovementAutomatic
CaliberETA 2824-2 / SW200-1
Case MaterialStainless Steel
Case Size38.5mm
Water Resistance200m
Lug Width20mm

What owners love

  • The distinctive, highly legible dial layout with crisp white numerals and hands delivers a clean, instrument-inspired look that stands out among everyday automatics.
  • Owners consistently praise the comfort and wearable proportions, noting the slim case height and short lug-to-lug make it fit a wide range of wrists better than many other 38–40mm watches.
  • The SW200-1 movement is regarded as robust and easy to service, with many reporting excellent accuracy out of the box.

Common Criticisms

  • The bracelet is frequently criticized for feeling rattly and less refined compared to the head, with sharp edges and a basic clasp that doesn't match the case quality.
  • The printed indices and logo can appear flat or less premium in person, lacking the applied or textured details found in some competitors at this price point.
  • Water resistance of 200m is appreciated, but the push-pull crown (not screw-down) is a recurring source of frustration for those expecting a more robust sports watch feature set.

Reviews & Videos

Recent Forum Listings

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  1. [WTS] Sinn 556A 38.5mm 2023
    Sinn Sinn 556A 38.5mm 2023 $1,200
    Reddit Reddit 3 days ago
  2. Sinn 556a, Fullset am Stahlband mit frischer Revision
    Sinn Sinn 556a, Fullset am Stahlband mit frischer Revision $952
    Uhrforum Uhrforum 2 weeks ago
  3. [WTS] Sinn 556 A Black | with H-link bracelet | 1100$
    Sinn Sinn 556 A Black | with H-link bracelet | 1100$ $1,100
    Reddit Reddit 2 weeks ago
  4. [WTS] Sinn 556A
    Sinn Sinn 556A $1,150
    Reddit Reddit 3 weeks ago
  5. [wts] sinn 556A (on aftermarket strap) running good, no box…
    Sinn sinn 556A (on aftermarket strap) running good, no box,… $1,075
    Reddit Reddit 1 month ago

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