
Wristwatches · Wristwatch
Omega Ranchero Seamaster Issued to the Fuerza Aérea Peru ref CK2990, 1961
- Maker / attribution
- Omega (maker)
- Date
- 1961
- Historical period
- Modern Mechanical Horology (1945 – 1969)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Dimensions
- Case 36 mm
- Stock no.
- w-2195
- Credit line
- Dealer listing, Bulang & Sons (w-2195)
- Catalogue title (original)
- Omega Ranchero Seamaster Issued to the Fuerza Aérea Peru ref CK2990 (English)
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Record summary
Catalogued by Bulang & Sons (dealer), Copenhagen (stock number w-2195), this is a wristwatch by Omega, made in Switzerland, dated 1961. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Recorded dimensions: Case 36 mm. The record is illustrated with 6 photographs.
Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.
Catalogue description
Dealer description — Bulang & Sons
We love watches with a story and they rarely get cooler than this, an Omega issued to the Fuerza Aérea Peru, or FAP as collectors refer to it, the Peruvian Air Force ! This Omega is very rare as it is too, as the Ranchero was possibly one of the shortest-run Omega tool watches in the brand’s history. Introduced in 1958, it was only available for two years. This example is extra special since the dial also features the Seamaster signature, leading Us to call these watches Ranchmasters ! This watch remains in nice condition, with a strong 36mm steel case and clear FAP engravings. The dial is in good condition with a cool patina on the hour markers. We believe the big arrow hour hand was relumed a long time ago. The “30mm” on the dial refers to the movement family of the time, which was regarded as one of the most accurate and durable. The watch is accompanied by an Omega archive extract confirming that the watch was delivered to the FAP in 1961 and also a medal that was awarded to the original owner who was a pilot. The watch comes on an Omega steel bracelet 1503/1 with clasp stamped “12” and ref 15 endlinks and it has been fully serviced by our watchmaker. We always love offering cool vintage finds like this to you guys. Please get in touch to discuss it more. We are here to help. Specifications: - Omega Ranchero ref 2990 - Dates to 1961 - 36mm steel case - Case back has FAP engraving - Rare double-signed Ranchero Seamaster dial - Omega archive extract confirming delivery to FAP - Medal from original owner who was a FAP pilot - Cal 268 manual wind movement - Movement serial 176xxxxx - Omega steel bracelet 1503/1 with clasp stamped “12” endlinks 15 - Fully serviced by our watchmaker - Includes a handmade leather watch pouch
Historical context
Modern Mechanical Horology (1945 – 1969)
Tool watches for divers, pilots and astronauts; electric watches anticipate the electronic age.
The classic era of the mechanical wristwatch: dive watches, chronographs for motor racing and space flight, GMT watches for jet travel, slim dress watches, automatic calendars, and the rise of Japanese manufacturers alongside Swiss, American, German and Soviet industries.
Read the period in the timelineMore wristwatches from this periodEarlier: Golden Age of Mechanical Watchmaking
Atlas type guide
Dive and water-resistant watches
Keeping water and dust out of a wristwatch was a long-standing challenge. Rolex's screw-down Oyster case (1926) and Omega's Marine (1932) were landmarks; in the early 1950s Blancpain's Fifty Fathoms and Rolex's Submariner defined the professional dive watch with rotating bezels for timing dives, luminous dials and high water resistance. The ISO 6425 standard (1982) later codified what a 'diver's watch' must do.
Dive watches became icons of post-war design and exploration, and their evolution — helium escape valves, ceramic bezels, saturation-diving depth ratings — records the history of underwater work.
What to look for
- Unidirectional or bidirectional rotating bezel with minute markings.
- Screw-down crown and case back; depth rating printed on the dial.
- Luminous hands and markers (radium before c. 1960, tritium c. 1960–1998, then Super-LumiNova).
- Reference numbers on the case between the lugs or inside the back.
Dating clues
- Screw-down Oyster cases: from 1926.
- Professional dive watches: from 1953.
- Tritium 'T' marks on dials: c. 1960–1998.
General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.
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