The dramatic and enduring design of the OMEGA Constellation is characterised by its famous half-moons, “claws” on the case and mono-rang bracelet.This 36 mm stainless steel model features a bezel engraved with Roman numerals, a sun-brushed black dial and a date window at the 6 o'clock position. The hands, OMEGA logo, Constellation star and indexes are all in 18K white gold.At the heart of this timepiece is the OMEGA Calibre 4564, which sits behind the brushed caseback with its embossed Constellation Observatory medallion.

Features
Date: The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o'clock.

Technical Data
Reference: 131.10.36.60.01.001
Lug‑to‑lug: 39.10 mm
Case diameter: 36 mm
Case: Steel
Dial colour: Black
Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance: 3 bar (30 metres / 100 feet)
Total product weight (approx.): 134 g
Calibre: Omega 4564
Movement Type: Quartz
Battery life: 25 months

Bracelet
Material: Steel
Type of Clasp: Butterfly clasp with comfort setting

Movement
Calibre OMEGA 4564: Quartz precision movement with rhodium‑plated finish. End of battery life indicator.