Zenith Defy Extreme Defy Extreme Diver Topper Edition

Reference 95.9602.3620/51.I303

About this watch

The Zenith Defy Extreme Diver Topper Edition 95.9602.3620/51.I303 debuted in 2024 as a limited edition of 50 pieces created in collaboration with Topper Jewelers. The watch is based on the Defy Extreme Diver platform and is constructed in titanium. The case measures 42.5 millimetres in diameter and approximately 15 millimetres in thickness. It features a screw-down crown protected by integrated crown guards, a sapphire crystal on the front, a sapphire exhibition case back, and a stated water-resistance rating of 600 metres, corresponding to 60 ATM. The model complies with ISO 6425 standards for professional diver’s watches, including requirements for shock resistance and paramagnetic performance. The dial is executed in a blue wave pattern developed exclusively for this edition. It incorporates a luminous bioluminescent effect achieved through the application of Super-LumiNova, referencing the natural phenomenon of deep-sea bioluminescence. The dial is paired with a blue ceramic bezel insert and features rhodium-plated, faceted hands and markers treated with Super-LumiNova X1. Time indication is provided through central hours, minutes, and a central seconds hand. Powering the watch is the El Primero 3620 SC automatic movement, a high-frequency calibre developed without a date function for this configuration. It operates at 36,000 vibrations per hour, corresponding to 5 hertz, and delivers a power reserve of approximately 60 hours. The movement architecture is visible through the sapphire case back and is fitted with a distinctive blue oscillating weight. The calibre displays hours and minutes centrally, with a centrally mounted seconds hand. The watch is equipped with Zenith’s interchangeable strap system and is delivered with multiple wearing options, designed to accommodate use both above and below a wetsuit.

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Specifications

Brand

Zenith

Family

Defy Extreme

Model

Defy Extreme Diver Topper Edition

Reference

95.9602.3620/51.I303

Movement Features

Hours, Minutes, Seconds
Date

Case

42.5mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

600

Current Listings

Zenith Defy Extreme 🫨 ($9,500) Watch only

Zenith - 97.9100.9004/02.I001 · $9,500

A Zenith Defy Extreme with a 45mm titanium case, this watch has wrist presence and is comfortable to wear.

Condition: Good condition cosmetically and mechanically
Case material: Titanium
Bracelet type: OEM rubber strap
Case size: 45mm

Posted at

Mar 19, 2026, 4:23 PM

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2024 Zenith Defy Extreme Titanium Diver El Primero Sunray Blue Dial FULL SET

Zenith - 95.9601.3620/51.I301 · $7,595

A modern iteration of the classic Defy diver, featuring a titanium case and a stunning blue starry sunray dial.

Condition: Mint, with light wear
Case size: 42.5mm diameter
Movement: El Primero cal 3620 CS
Depth rating: 30m water resistance

Posted at

Mar 15, 2026, 9:40 PM

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2024 Zenith Defy Extreme Titanium Diver El Primero Sunray Blue Dial FULL BOXES & CARD SET

Zenith - 95.9601.3620/51.I301 · $7,649

This is a modern iteration of the classic Zenith El Primero Defy diver, featuring a titanium case with a funky sunray blue dial and an iconic automatic calibre 3620 movement.

Condition: Like new, just over a year old
Case diameter: 42.5mm
Movement: El Primero cal 3620 CS
Rotor description: cool rotor visible through the sapphire case back

Posted at

Mar 8, 2026, 9:30 PM

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>>REDUCED FURTHER<< ZENITH DEFY EXTREME DIVER TITANIUM 5 Year WARRANTY

Zenith - 95.9600.3620/01.I300 · $7,650

A Zenith Defy El Primero Extreme Diver in Titanium with a black dial, ceramic bezel, and orange highlights.

Condition: LNIB (Like New In Box)
Diameter: 42mm
Water Resistance: 600m
Movement: in house El Primero movement

Posted at

Apr 7, 2025, 2:45 PM

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