Zenith
Pilot Type 20 Extra Special Bronze
Ref. 29.2430.679/21.C753
2015–2022 · 45mm · caliber Elite 679: in-house automatic, 3-hand, 28,800 vph (4Hz), 126 components, 25.6mm dia. x 3.85mm height, 50h reserve
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In-house manufacture caliber
Large case: suits wrists 7 in+ (18 cm+)
45 mm case. A bold, statement-size wear. Best suited to larger wrists where the case sits flush.
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Authentication
The caseback is titanium, not bronze, specifically to avoid skin contact with the bronze case; a bronze caseback on this reference is inconsistent with factory spec.
Known issues in the market
- Genuine bronze cases patina naturally over weeks and months of wear; be cautious of a case represented as worn but showing no oxidation at all, or an artificially and unevenly aged finish.
- This reference has no date window and no chronograph; a date aperture or sub-dials on a watch sold as this reference indicates a different Pilot Type 20 model.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| case | Bronze case with titanium caseback | Rough satin-finished bronze case (case, crown, and pushers), titanium caseback engraved with Zenith’s flying-instrument logo and Blériot’s aircraft | Bronze or steel caseback instead of titanium; case material inconsistent with bronze (no capacity to patina) |
| dial | Matte black dial, no date | Large Arabic numerals in slightly cream-toned Super-LumiNova, golden cathedral-style hands, no date window disrupting dial symmetry | Date window present; numerals or hands inconsistent with the cathedral-and-Arabic-numeral pilot style |
| movement | Elite 679 in-house caliber | Elite 679 self-winding 3-hand movement (no chronograph, no date module), visible only via service access since this reference has a solid caseback | Sellita SW200 or ETA 2824 substitute movement; chronograph sub-dials or date complication inconsistent with this reference |
Common legitimate replacements
- Original oily nubuck leather strap with black rubber lining and titanium buckle; this is the factory-only strap option for this reference.
Expert resources: Zenith Pilot Type 20 Extra Special Bronze 29.2430.679/21.C753 press materials. Zenith Elite 679 caliber documentation.





