Up for sale (no trade offers please) is this Sinn 900 pilots chronograph with GMT (callers) hand. The watch is in good condition, but has some scratches here and there and signs of wear. The moisture indicator is only slightly blue. It is 44mm, and is black PVD (case and bracelet). It is regulated to run at about 3 spd:

DU: 0.4
12U: 8.6
CU: 2.1
6U: -1.4
CD: 3.0
DD: 3.9

Avg: 2.8 +/- 3.3

It comes with the box, manual, the bracelet tools, and an extra link that should take to to ~7.25 inches or so. Please consider the photos for a full description of condition. Price reflects condition.

From the Sinn website:

Case made of stainless steel, satinized
Case made with TEGIMENT Technology and therefore especially scratch-resistant
Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
Magnetic Field Protection up to 100mT (=80,000 A/m)
Sapphire crystal glass
Nickel-free case back without TEGIMENT Technology
Interior pilot's bezel
Second time zone on a 24-hour basis
Appliqués meticulously attached by hand
Water-resistant and pressure-resistant to 20 bar
Low pressure resistant
SW 500 movement
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309

I will pay USPS Priority shipping. Paypal/Venmo accepted; other forms of payment just ask.

On my ~7-inch wrist (canvas strap NOT INCLUDED):