A Sinn 556 I RS watch with a red seconds hand, designed for legibility in low-light conditions and durability around magnetic fields. It's sold new retailing over $1500+, but the seller is offering it for $1200 shipped.

• Condition: Excellent Condition
• Bracelet: H-Link
• Clasp: OEM fliplock clasp

This Sinn 556 is a 2022 model that has been worn daily and comes in its original box, papers, and certification. It shows some signs of wear but still looks beautiful.

• Condition: Good with signs of wear
• Year: 2022
• Band size: 7.5 inches

A Sinn 556 I RS from 2022 in good condition with a perfect crystal and accurate timekeeping. It comes with its original box, tools, papers, and certificate, as well as a leather strap.

• Condition: good condition
• Year: 2022
• Owner history: 2nd owner

This listing is for a Sinn 556 55th anniversary limited edition, one of only 1000 made.

• Condition: Great condition
• Year: Limited edition (one of 1000)
• Bracelet: Desk Diver
• Straps included: Yes, Sinn leather strap

A Sinn 556 iRS with a stainless steel H-link bracelet, serving as the daily companion through its owner's most challenging yet rewarding year. The red seconds hand acted as a reminder to keep moving forward in difficult times.

• Condition: Great shape
• Bracelet: Stainless steel H-link
• Size: 38.5mm

A 2022 Sinn 556 RS with a Gold Rotor, featuring the discontinued rotor that adds contrast through the sapphire caseback. The watch has been worn sparingly but shows signs of use.

• Condition: Good/Honest condition with minor wear, rated 7/10
• Case Material: Sapphire
• Caseback: Sapphire with contrast through sapphire caseback
• Bezel: Clean, no dents or deep scratches

A Sinn 556 I RS with a red seconds hand, which was the daily companion of the seller during a challenging but rewarding year. The watch has survived various conditions and comes with its original packaging and a stainless steel bracelet.

• Condition: Great shape
• Bracelet material: stainless steel
• Box and papers included: yes

This Sinn 556 Anniversary watch is a limited edition model from 1961-2016, featuring an H-link bracelet. It's in great condition overall, with some minor marks.

• Condition: great condition with minor scratches and hairlines on bracelet and case, outer AR coating has some hairlines
• Bracelet type: H-link
• Accessories included: full-kit (excluding Sinn tool)
• Shipping method: Fedex

Up for sale is my Sinn 556 I RS purchased on 7/25/25. It comes with all original packaging and receipt.

• Condition: Very good
• Purchase Date: 7/25/2025
• Original Straps Condition: Brand new
• Warranty Status: Under warranty