Omega Constellation Extra Plat Chronometer – Ultra-Thin 1960s Elegance | Reference 167.021

A Refined Vintage Classic from 1966

The Omega Constellation Extra Plat Chronometer, Reference 167.021, embodies the understated sophistication and technical finesse of mid-20th-century Swiss watchmaking. Produced circa 1966, this piece reflects the era’s pursuit of slim precision and timeless elegance. With its sleek 33 mm stainless steel case, the Extra Plat was designed to be a discreet yet distinguished companion, carrying the hallmark refinement of the Constellation line.

Powered by the Ultra-Thin Omega Calibre 712

At its heart beats the Omega Calibre 712, an exceptionally slim automatic movement that was among the thinnest of its kind at the time. Its design represents Omega’s mastery in marrying efficiency with elegance, offering both chronometer-certified accuracy and mechanical innovation. This example has been fully serviced by our in-house watchmaker and runs with precision and reliability, ensuring it remains a worthy horological companion.

Silver Dial & Vintage Charm

The original silver dial presents beautifully, in excellent condition with crisp markers and balanced proportions. Its clean design embodies the quiet elegance of Omega’s golden age. The watch retains its original Omega crown and original signed Omega plexiglass, both adding to its authenticity and period-correct charm.

Distinctive Constellation Details

Housed in a 33 mm stainless steel case (Ref. 167.021), the Extra Plat carries the subtle, slim profile that makes it both comfortable on the wrist and a refined dress option. Every detail reflects Omega’s attention to craftsmanship, from the balanced case lines to the enduring Constellation heritage.

Key Specifications

• Reference: 167.021

• Year: Circa 1966

• Serial: 23,659,460

• Case: Stainless steel, 33 mm, ultra-thin profile

• Movement: Omega Cal. 712 – automatic, ultra-thin chronometer, serviced

• Dial: Original silver dial, excellent condition

• Crystal: Original Omega signed plexiglass

• Crown: Original Omega crown

• Condition: Excellent, fully serviced, running well

A Collector’s Ultra-Thin Omega

For those seeking a vintage Omega dress watch with both historical importance and refined elegance, the Constellation Extra Plat Chronometer offers an outstanding proposition. Its combination of slim design, chronometer-certified movement, and original condition make it a distinguished addition to any vintage collection—perfect for the connoisseur of understated horology.