WHICH WATCH FITS

Zenith DEFY Revival A3643

Zenith · DEFY Revival

Zenith DEFY Revival A3643

Zenith DEFY Revival A3643 (reference 03.A3642.670/01.M3642) — specifications, measurements, watch images and standardized wrist-fit previews for informed comparison.

Zenith DEFY Revival A3643: 37 mm, heritage, automatic, 300 m water resistance.

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Best forUsers comparing current Zenith models and 2026 releases.
Not ideal forUsers requiring live street-price or dealer-stock confirmation.
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At a glance

Reference03.A3642.670/01.M3642
CollectionDEFY Revival
Model lineDEFY Revival
Production statusCurrent
Production period2026–present
Official size37
Watch technology InfoMechanical
DisplayAnalog
Movement InfoAutomatic
Calibre / operating system InfoElite 670
Key features InfoDate
Complication InfoDate
Case diameter Info37 mm
Power reserve / runtime50 hours
Water resistance300 m
OriginSwitzerland
Recommended wrist Info14–20 cm
Price categoryLuxury

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Specifications last verified: 2026-08-11.

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