Zenith
DEFY Revival A3648 Stainless Steel Automatic Watch

  • 03.A3648.670/21.M3648
  • 37mm
  • Black Dial

£6,900

Available free next day delivery

Ring Size Circumference (mm)
I 48.0
J 48.7
K 50.0
L 51.2
M 52.5
N 53.8
O 55.1
P 56.3
Q 57.6
R 58.9
S 60.2
T 61.4
U 62.7
V 64.0
W 65.3
X 66.6
Y 67.8
Z 68.5

Please note that this is only a guide and will not take into account the style of ring. For example, if you are choosing a ring with a deep band width, you may need a larger size.

View the ring size guide

About This Piece

It’s no coincidence that this Zenith DEFY Revival A3648 Stainless Steel Automatic Watch might seem recognisable if you’re a longstanding DEFY connoisseur. Released at Watches and Wonders 2024, this timepiece is a reproduction of the first DEFY diver’s watch from 1969. With all the details faithful to this iconic model - the faceted 37mm stainless steel case, the black and bright orange tones, and the 600m water resistance – we couldn’t be happier to see this milestone Zenith watch brought back to life. Now equipped with the Elite 670 movement which boasts a power reserve of 50 hours, as well as a breathtaking display of expert craftsmanship through the sapphire crystal case back, this timepiece is ready to conquer your deepest of dives in signature, sleek style. It’s simply unstoppable.

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Editor's Notes


Well guys, here we have the future of watchmaking. Zenith Defy watches are the epitome of the brand's endless pursuit of precision and a platform for horological innovation. With integrated bracelets, geometric form and sharp cases, the Defy collection is home to some of the most technically impressive Zenith watches ever built.

The remarkable diving features don’t stop there. The unidirectional steel bezel with orange sapphire insert, screw down crown, and luminescent dial details are a cocktail of ocean-ready innovation. Pair that with the stainless steel bracelet and there you have it: a match made in horological exceptionality. It’s giving us all the precision and resilience we’ve been dreaming of (and more).

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