Characterised by its thin and elegant case, the Trésor line was first launched by OMEGA in 1949 and housed the legendary 30mm calibre. More than half a century later, it continues to impress with one of today’s most advanced mechanical movements.

This model has a polished 40 mm 18K Sedna™ gold case, which is presented on a blue leather strap. The domed blue dial includes a Power Reserve display at 12H, a Small Seconds display at 6H, along with hands and domed indexes in 18K Sedna™ gold.

Inside, this De Ville Trésor is powered by the OMEGA Co-Axial Master Chronometer Calibre 8935 and is certified at the industry’s highest standard of precision, chronometric performance and magnetic resistance.

Features
Anti-magnetic: The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
Chronometer: Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
Master Chronometer Certified: Guaranteeing the Swiss industry’s highest standard of precision, performance and magnetic-resistance, as set by the Swiss Federal Institute of Metrology (METAS).
Power reserve indicator: A dial or gauge on the watch which indicates how much time remains before the mainspring must be wound or the battery changed.
Small seconds: A hand on a sub-dial which tracks seconds typically it completes a full rotation in one minute.
Transparent caseback: A transparent caseback - frequently made of sapphire - makes it possible to see the movement inside the watch.

Technical Data
Reference: 435.53.40.22.03.001
Between lugs: 20 mm
Lug‑to‑lug: 44.80 mm
Thickness: 10.65 mm
Case diameter: 40 mm
Case: Sedna™ gold
Dial colour: Blue
Crystal: Scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance: 3 bar (30 metres / 100 feet)
Total product weight (approx.): 77 g
Calibre: OMEGA 8935
Movement Type: Manual‑winding
Power reserve: 72 hours

Strap
Strap color: Blue
Strap type: Leather strap
Strap surface: Alligator leather
Strap underside: Calf leather
Buckle type: Pin buckle
Buckle material: Sedna™ Gold