Sinn U1 Watch Full Set

44mm SINN U1 Automatic SDR

Made from high-strength, seawater-resistant German submarine steel

Water resistant to a depth of 1000m

Sinn Reference Number: 1010.040

Completely serviced by an authorized Sinn dealer on October 13 2025 at a cost of €430

The watch comes as a full set.
In addition to the watch itself, it includes the outer box, inner box, spring bar tool, booklet, and warranty card.

This is the original version with the ETA 2824-2 movement, which Sinn no longer manufactures.

In October 2025 the watch underwent a complete service at the authorized Sinn dealer F.C. Bauer in Munich at a cost of €430.

The sapphire crystal glass, mainspring, seconds wheel, escape wheel, centre wheel, jewel bearing, and automatic winding wheel were all replaced.

Mechanically, the watch is therefore, of course, perfect.

Made from tegimented hardened steel, ensuring it is highly scratch-resistant and in very good condition with only minor cosmetic wear marks.

In a timing machine test, the watch ran very well at approximately +2 seconds per day.

The watch comes with the original Sinn silicone strap and clasp suitable for wrists up to approximately 19 cm in circumference.

Wears very comfortably due to the soft strap and offset crown.

https://www.sinn.de/en/watches/u1.html

Selling to fund another purchase so no swaps or trades please.

Unrealistic offers will be frowned upon and ignored.