Omega Speedmaster Professional Mark II, Ref. 145.014, Caliber 861 Post "Moonwatch", Circa 1970

OMEGA SPEEDMASTER PROFESSIONAL MARK II Ref. 145.014 - Caliber 861 (Lemania 1873) - Circa 1970.

Recently overhauled at ABP Concept, Paris (full service) - Excellent condition - Watch delivered with original box.

The direct heir to the "Moonwatch", born for the modern era.

Introduced in 1969, the same year as the Apollo 11 moon landing, the Speedmaster Professional Mark II symbolizes Omega's determination to usher in a new era for its legendary chronograph.

If the "Moonwatch" is about the conquest of space, the Mark II is about design and modernity, more streamlined, more robust, more contemporary.

Its one-piece tonneau case in satin-finish steel, typical of the 1970s, is a feat of ergonomics and style: a balance between sportiness and technical elegance. The tachymeter scale, now integrated under the glass, provides enhanced legibility and protection - a landmark innovation of this generation.

Catalogue number: 145.014

Type: Watch-bracelet

Year: Circa 1970

Movement: Hand-wound mechanical Omega Calibre 861, derived from the Lemania 1873, identical to that of the post-1968 "Moonwatch" - a robust, precise and legendary movement, the successor to Calibre 321. Frequency: 21,600 vph Power reserve: approx. 48 hours. Special feature: this caliber succeeded the 321 and was used on "Moonwatches" until 1996.

Case: steel brushed, tonneau-shaped, screw-down back engraved with seahorse (some wear). Diameter: 41 mm.

Dial: original matte black with luminescent baton hour-markers, three subdials (seconds at 9 o'clock, hours at 6 o'clock and minutes at 3 o'clock), tachymeter scale integrated under the glass, homogeneous tritium patina on hour-markers and hands.

Crystal: new Omega tachometric crystal (original crystal retained).

Bracelet : steel Original Omega with signed folding clasp. Diameter: 19 cm.

Case number: 145.014

Overhaul & condition

Watch completely overhauled at ABP Concept (Paris) in Sept. 2025 (invoice supplied):

Complete overhaul of chronograph,

Replacement of Omega tachometric glass,

Cleaning and adjustment,

Very light polishing respecting the original brushed finish,

Original dial and hands preserved, not restored.

Watch perfectly functional, precise.

Certificate of authenticity available on request (will be provided by Atelier des Tocantes, Paris).

Delivered with:

Original Omega case.

Old tachymeter glass preserved.

Revision invoice (ABP Paris, 2025).

Certificate of authenticity available.

Specialist's commentary

A true icon of 1970s watchmaking design, the Speedmaster Professional Mark II embodies an exciting transition in Omega's history: from space conquest to modern aesthetics. It shares the same legendary engine as the post-1968 Moonwatch - the caliber 861 derived from the Lemania 1873 - while asserting a bolder, more contemporary personality.

This timepiece features a perfectly homogeneous tritium patina, an exceptionally well-preserved original dial and a slightly satin-finished case (with a few minor dents) in keeping with the period finish.

Overhauled by a reference workshop, delivered with its original case and vintage Omega crystal, this watch combines authenticity, reliability and vintage charm.

Highlights - Caliber 861, derived from the Lemania 1873, identical to the post-1968 Moonwatch. - Completely overhauled by ABP (September 2025). - Original dial and hands, homogeneous tritium patina. - Vintage Omega case. - New tachymeter crystal (old retained). - Functional piece, ready to wear and collect.

A Speedmaster like no other Thought to succeed the Moonwatch while embodying modernity, the Mark II is a pivotal watch: the perfect synthesis of space heritage and seventies design. A rare timepiece in this condition, with a very serious overhaul that is at once historic, elegant and resolutely timeless.