The Rolex Air King
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The Air-King has moved between different roles within the Rolex collection, from an aviation-related watch to a classic, more affordable model and later towards a sporting identity. The vintage references 5500 and Air-King Date 5700 reveal how much they shared with other Rolex watches, and where their technical differences lay.
An aviation connection
During the Second World War, RAF pilots are said to have worn Rolex Oyster watches alongside their military-issued timepieces, choosing them as auxiliary instruments for their reliability and dimensions.
In 1942, Rolex's founder arranged for watches to reach British officers held in prisoner-of-war camps, with payment deferred until after the conflict. Requests could be sent by letter through the Red Cross in Geneva. The initiative combined a commercial decision with a gesture of support for the Allied officers.
In 1945, the Air-King appeared alongside the Air-Tiger, Air-Giant and Air-Lion in a collection celebrating RAF pilots. The Air-King was the model that continued beyond the wider family's relatively brief production.
From manual winding to reference 5500
The first Air-King, reference 4925, was manually wound. Reference 4365, introduced alongside it, stood out for its small seconds display at 6 o'clock. Reference 4499 followed in 1946, also with a hand-wound Hunter movement.
The arrival of reference 6552 brought the automatic calibre 1030, baton hour markers and the distinctive Air-King lettering. Its dial read Oyster Perpetual Air-King. Together with the transitional 6652, it preceded the 5500.
Introduced in 1957, the 5500 remained in production through 1989. This 33-year run is considered Rolex's longest production span for a single reference.
The 5500 and the Oyster Perpetual 1002
The 5500 examined dates from 1972. Its steel case measures 34 mm without the crown, with 19 mm between the lugs and a Hesalite crystal. It shares its case design with the Oyster Perpetual 1002, apart from the reference engraving. From around the mid-1960s, the two models also shared case backs marked 1002.
The details of the Precision dial
The 5500 retains the appearance of a classic Oyster, with applied hour markers and small tritium dots. Its distinctive Air-King lettering identifies the model, while Precision replaces the chronometer-certification wording.
The pointed hour and minute hands are another distinguishing feature, inherited from the manually wound Oysterdate Precision. Their shape differs from the flat-ended hands of other classic Rolex models.
Comparing calibres 1520 and 1570
The principal distinction is mechanical. The Air-King shown uses calibre 1520 without COSC certification, while the 1002 in the comparison uses the certified calibre 1570. The two movements have identical overall dimensions, allowing the shared case construction.
| Feature | Calibre 1520 | Calibre 1570 |
|---|---|---|
| COSC chronometer certification | Not certified | Certified |
| Hairspring | Flat | Breguet overcoil |
| Rate adjustment | Index regulator; no Microstella weights | Free-sprung balance with Microstella inertia weights |
The simpler regulating assembly and the absence of the cost of chronometer certification explain the Air-King's more affordable position relative to the 1002.
The less familiar Air King Date 5700
The second example dates from 1968. The Air-King Date 5700 was aimed at English-speaking and North American markets and was absent from catalogues in Italy and much of Europe, earning it the description of a ghost reference in the video.
Its relationship with the Rolex Date 1500 follows the same pattern as the 5500 and 1002. The 5700 and 1500 share their case construction and a case back marked 1500, with the reference engraving distinguishing the cases.
The movement carries a 1520 marking but is identified in Rolex's internal nomenclature as calibre 1525: an automatic movement with a date and no COSC certification. The Air-King Date is the only Rolex model to use this calibre.
On the dial, Air-King Date appears on one line, accompanied by Precision and the same pointed style of hands.
Two examples with different finishes
Both watches shown have sunburst dials. The 5700 has a silver tone, while the 5500 is darker grey. In the side-by-side comparison, the 5700's case is slightly larger in diameter and lug-to-lug length, with a slightly larger crown.
The 5700 wears a riveted 7205 bracelet appropriate to its period. The bracelet on the 5500 is later than the watch; the model was also often sold on a leather strap.
The later evolution of the Air King
In 1990, a new reference replaced the 5500, bringing a sapphire crystal and a movement from the 3000 series while retaining the established design language.
Reference 114200 later brought COSC certification to the Air-King, and Precision disappeared from the dial. In 2016, reference 116900 gave the model a markedly sportier identity through its dial and case, placing it among Rolex's technical and professional watches.