Defy Chronograph USM Green

Reference 03.A780.400-2/91.M3642

Reference only — not currently in stock

The Zenith Defy Chronograph USM 03.A780.400-2/91.M3642 was introduced in 2025 as part of a four-part capsule series in partnership with USM Modular Furniture, each limited to 60 examples. The stainless steel case measures 37mm and carries the signature Defy traits of 1969: an octagonal body, faceted surfaces, and a fourteen-sided bezel. Chronograph pushers and the stainless steel ladder bracelet underline the retro-inspired execution. The USM Green dial features rhodium-plated markers with engraved grooves and three silver sub-dials arranged in tri-compax format, their azuré surfaces recalling the geometry of USM’s signature ball joints. Inside runs the El Primero 400, Zenith’s historic 5 Hz automatic chronograph caliber with column-wheel control. It provides hours, minutes, small seconds, central chronograph seconds, a 30-minute counter, a 12-hour counter, and a date display at 4:30, with a power reserve of 55 hours. Through the sapphire back, the rotor with star motif and USM engravings is visible. Water resistance is rated at 100 meters.

Brand

Zenith

Model

Defy Chronograph USM Green

Reference

03.A780.400-2/91.M3642

Category

Revival

Year introduced

2025

Movement

Zenith caliber El Primero 400 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel

Case material

Stainless Steel

Case diameter

37 mm

Dial color

Green

Crystal

Sapphire

Case back

Open

Water resistance

300 m

Lugs

18

Complications

Date, Chronograph