ZENITH – DEFY Extreme Diver and
DEFY Revival Diver Dial 42.5 mm Titanium Edition - 2025
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DEEP IN THE ABYSS WITH THE DEFY EXTREME DIVER AND DEFY REVIVAL DIVER IN A SHADOW VERSION
Since 1969, the ZENITH DEFY collection has stood as a symbol of unwavering strength and precision. Nicknamed the “time safe” for its robust construction and ability to protect the movement like a vault, the DEFY quickly became a benchmark in durability.
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Among its most iconic iterations was the DEFY Diver A3648, known as the DEFY Plongeur, a true professional dive watch featuring a 600-meter water resistance and a rotating bezel. In 2024, ZENITH reaffirmed its commitment to extreme performance with the launch of the modern DEFY Extreme Diver and a faithful revival of the coveted A3648.
Click, to see the large size. ▶ BIG FOTO
Click, to see the large size. ▶ BIG FOTO
Click, to see the large size. ▶ BIG FOTO
While their dark tones and subdued textures evoke a sense of technical sophistication, vibrant yellow accents inject a burst of energy and high visibility, making these timepieces as functional as they are striking.
DEFY Extreme Diver: Designed for the Deep, Built for the Extreme
A modern descendant of ZENITH’s pioneering 1969 DEFY dive watches, the DEFY Extreme Diver is a contemporary instrument engineered for the most challenging underwater conditions.
Housed in a 42.5 mm micro-blasted titanium case, this rugged timepiece is as functional as it is striking. Sitting atop the fixed dodecagonal base is a unidirectional rotating bezel in black ceramic, fully filled with Super-LumiNova for optimal legibility. Precision operation is ensured, while the fluted bezel edge allows for easy handling, even with gloves.
Designed for saturation diving, the watch boasts a 600-meter water resistance and features a helium escape valve, alongside a screw-down crown flanked by protective guards.
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The star-patterned black dial is equipped with C1 Super-LumiNova markers and hands, punctuated by vivid yellow accents that ensure visibility in low-light conditions.
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In a rare feat for a watch of such depth rating, ZENITH has integrated an exhibition case back that reveals the El Primero 3620 automatic movement, finished in a sleek modern black. This time-only calibre beats at a high frequency of 36,000 vibrations per hour and features a paramagnetic escapement with key components crafted from silicon. The bidirectional winding system provides a robust 60-hour power reserve.
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DEFY Revival Diver: Heritage Reborn in Titanium
A faithful recreation of the original DEFY A3648 diver’s watch from 1969, the DEFY Revival Diver brings vintage charm into the modern era with a dark, faceted 37mm micro-blasted titanium case.
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Staying true to the original DEFY design language, the signature fourteen-sided bezel is retained, now placed above a round unidirectional rotating bezel crafted in titanium and fitted with a yellow-tinted sapphire insert. For improved ergonomics, the screw-down crown is positioned at 4:30, just as it was on the original. Like its contemporary counterpart, the DEFY Revival Diver boasts a water resistance of 600 meters, or 1,969 feet, a subtle nod to the year the DEFY collection was born.
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Click, to see the large size. ▶ BIG FOTO
Powering the DEFY Revival Diver is the automatic Elite 670 calibre, which displays the hours, minutes, seconds, and date. Remarkably, despite the 600-meter depth rating and compact size, the watch features an exhibition case back offering a clear view of the movement.
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Click, to see the large size. ▶ BIG FOTO
The DEFY Extreme Diver and the DEFY Revival Diver are available at all ZENITH boutiques, online and in-store, as well as from authorized retailers worldwide.
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TECHNICAL SPECIFICATIONS
Model: DEFY Extreme Diver Titanium Edition
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Reference: 97.9600.3620/21.I300 -
Shadow signature (microblasted titanium).
Black ceramic unidirectional rotating bezel filled with SuperLuminova.
Stop-second mechanism.
Screwed-in crown. Helium valve.
600M Water resistance
MOVEMENT
Calibre: El Primero 3620 SC Automatic
Frequency: 36’000 VpH – 5Hz
Power reserve: 60 hours
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Hours and minutes in the center, central second hand
Date indication at 3 o’clock.
Finishes: new star-shaped oscillating weight with satined finishings
CASE
Material: Brushed titanium
Water resistance: 60ATM
Case: 42.5mm
Thickness: 15.5 mm / Lug to lug : 47.4 mm
Crystal: flat sapphire crystal with anti-reflective treatment on both sides Case-back:
transparent sapphire crysta
DIAL
Black & yellow matte with starry sky pattern
Hour markers: Rhodium-plated, faceted and coated with SuperLuminova SLN C1
Hands: Rhodium-plated, faceted and coated with SuperLuminova SLN C1
Bracelet & Buckle
Comes with 3 straps: Black “cordura effect” rubber with folding clasp.
buckle included
🔰Edition: ✅ of ❱❱❱ 1’969 pieces
🔴Price: 11’900 CHF / 12’900 EUR / US $12,300 💰
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TECHNICAL SPECIFICATIONS
Model: DEFY Revival Diver Titanium Edition
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Reference: 97.A3648.670/21.M3648 -
Octogonal case with iconic 14-sided bezel.
Shadow signature (microblasted titanium).
Unidirectional rotating bezel with yellow tinted sapphire insert.
Screwed-in crown.
600M Water resistance
MOVEMENT
Frequency 28,800 VpH (4 Hz)
Power reserve approx. 50 hours
Functions: Hours and minutes in the centre.
Central second hand. Date indication at 4:30.
Finishes: Oscillating weight with “Côtes de Genève” finishings
CASE
Material: Stainless steel
Water resistance: 60 ATM
Diameter: 37 mm
Thickness: 15.5 mm / Lug to lug : 44 mm
DIAL
Black & yellow with SuperLuminova SLN C1
Hands: Yellow painted with SuperLuminova SLN C1
Hour markers: White transferred with SuperLuminova SLN C1
Crystal: Domed sapphire with anti-reflective treatment on both sides
Case-back: Transparent sapphire crystal
Bracelet & Buckle
Microblasted titanium bracelet with folding clasp.
🔰Edition: ✅ of ❱❱❱ 1’969 pieces
🔴Price: 7’900 CHF / 8’600 EUR / US $8,200 💰
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Press Release - 2025
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ZENITH | Swiss Watch Manufacture Since 1865
Rue des Billodes 34-36 | CH-2400 Le Locle
Minh-Tan-Bui
Tel. +41 32 930 65 59
Mobile +41 79 515 47 54
Email: minh-tan.bui@zenith-watches.com
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