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Reference · Seamaster

Omega 166.003 (166.0003)

Omega's vintage database lists 2 variants of 166.0003, in 1962. Omega's 2012 case sheet for it lists 15 part numbers for the case, by metal: BA, BB, CD, CE, MD, ST. Here is all of it, as Omega records it.

562Calibre on the case sheetEvery part 565Calibre on the case sheetEvery part

In Omega's records

ReferenceYearCase and ratingCalibreMovement
CD 166.00031962Gold cap on stainless steel, screw-in back, 3 bar (30 m)562 or 565Automatic
ST 166.00031962Stainless steel, screw-in back, 3 bar (30 m)562 or 565Automatic

Source: Omega's vintage database, as held in the reference lookup. The letters in front of the reference are the case metal: gold or plated?

Omega 166.003 on eBay: For sale now What they sold for

Case parts, from Omega's 2012 case sheet

Every line below is Omega's part number and Omega's own description, as printed on its case sheet for 166.0003. “For” is the case metal each part is listed for: ST steel, BA 18k yellow gold, CD gold cap, MD gold-plated, and so on, the letters that sit in front of your reference. Prices on the sheet are 2012 prices and are left off.

Crystal

Part numberAs Omega prints itQtyFor
063PX5143GLASS PLEXI 2N RING D30.62 H5.41BA, BB, CD, MD
063PY5143GLASS PLEXI 5N RING D30.62 H5.41CE
063PZ5143GLASS PLEXI ST RING D30.62 H5.41ST

Crown

Part numberAs Omega prints itQtyFor
069ST42522STEEL CROWN1ST
069SX42522CROWN PLATED PVD YELLOW 2N1BA, BB, CD, MD
069SY42522CROWN STEEL PLATED PVD PINK 4N1CE

Bezel

Part numberAs Omega prints itQtyFor
082CE1660003PINK PLAT. BEZEL1CE
082ST1660003SPSTEEL BEZEL1ST

Case back

Part numberAs Omega prints itQtyFor
112ST1660003STEEL BACK MED. SEAM.1ST

Seals and gaskets

Part numberAs Omega prints itQtyFor
088NS5081SEAL O-RING D30 D31.6 Ø0.81BA, BB, CD, CE, MD, ST

Case tube

Part numberAs Omega prints itQtyFor
090BA4067YEL/GOLD CASE TUBE 18K1BA, BB
090ST4072CASE TUBE1CD, CE, MD, ST

Stem and casing clamps

Part numberAs Omega prints itQtyFor
081ST99931/2 HANDSETTING STEM CROW D.0,901BA, BB, CD, CE, MD, ST
72205501106WINDING STEM1BA, BB, CD, CE, ST
72205501974ACASING CLAMPS1BA, BB, CD, CE, ST

The 166.0003 crystal on eBay: For sale now What they sold for

Search any number above in the parts finder, check the crystal in the crystal lookup and the hands in the hands lookup.

Is your 166.003 all original?

The reference, the calibre, the crystal, the crown and the dial have to agree with Omega's records. Six photos and the weight, and I check them against Omega's own case sheet and put it in writing. Nothing to pay until I confirm the photos can answer it.

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Questions people ask

What movement is in the Omega 166.003?

Omega's database lists 166.0003 with the calibre 562 or 565 (1962). Omega's 2012 case sheet lists it with the 562, 565.

What crystal fits the Omega 166.003?

Omega's 2012 case sheet lists 063PX5143 (BA, BB, CD, MD); 063PY5143 (CE); 063PZ5143 (ST). The letters after each number are the case metals it is listed for, the same letters that sit in front of the reference.

What crown fits the Omega 166.003?

Omega's 2012 case sheet lists 069ST42522 (ST); 069SX42522 (BA, BB, CD, MD); 069SY42522 (CE).

Watch Breaker is an independent identification specialist and parts dealer and is not affiliated with, endorsed by or connected to Omega SA or the Swatch Group. Omega is a trademark of Omega SA. Reference data is from Omega's vintage database; case parts are from Omega's 2012 case sheets, transcribed as printed; no pages are reproduced and no prices are shown. eBay links are affiliate links. Terms.