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ZENITH - Pilot

PILOT Big Date Flyback

Stainless steel, El Primero 3652, 42.5 mm. Made in Le Locle, Switzerland. Model 03.4000.3652/21.I001
Editor's notes

The ZENITH aviator's chronograph returns in the PILOT Big Date Flyback. Crafted in a 42.5mm steel case with an oversized crown, paired with a black corrugated dial featuring large luminescent Arabic numerals and coloured indications for easier reading. Delivered with interchangeable black cordura-effect rubber and brown calfskin leather straps. Powered by the El Primero 3652 automatic high-frequency chronograph calibre with big date and the flyback functions.


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Technical Specifications


Model: 03.4000.3652/21.I001

El Primero 3652


Components: 303

Jewels: 35

Frequency: 36,000 VpH (5 Hz)


Bracelet Material: Black "Cordura" effect

Bracelet Interhorn (case): 20

Bracelet Interhorn (buckle): 16

Interchangeable strap system: Yes

Steel triple folding clasp


Black with horizontal grooves


Hours and minutes in the centre 

Small seconds at 9 o'clock 

Instantaneous Big Date at 6 o'clock 

Flyback Chronograph 

- 30-minute counter at 3 o'clock

Water resistance: 10 ATM


Transparent sapphire crystal

Case-back: Domed sapphire crystal with anti-reflective treatment on both sides

Hour-markers: Applied arabic numerals in SuperLuminova SLN C1 [Hour markers]

Case material: Stainless steel/p>

03 4000 3652 21
03 4000 3652 21 03 4000 3652 21

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