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Zenith · Pilot

Zenith Pilot Automatic (ceramic)

Reference 49.4000.3620/21.I001 · Tool · 40 mm

1212456789101114Ø 40 mm
Illustration drawn from the specifications: case to scale, colours and style approximate. Not a photo. Photos on the official page

Specifications

Reference
49.4000.3620/21.I001
Family
Pilot
Category
Tool
Status
Current
Case material
Ceramic
Case diameter
40 mm
Case thickness
12.85 mm Official
Lug-to-lug
—
Lug width
—
Water resistance
100 m
Bezel
—
Calibre
El Primero 3620 Official
Frequency
36,000 vph (5 Hz)

Official product page · retrieved October 18, 2026

Does it fit your wrist?

Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.

1212456789101114No lug-to-lug dataFlat top of the wrist 54.1 mm
Top view on a wrist, to scale
Flat top of the wrist 54.1 mmNo lug-to-lug dataCase diameter 40 mm
Side view, across the wrist

No lug-to-lug figure exists for this reference yet, so fit cannot be computed.

Measurements and sources

Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.

Case thickness

Value Type Source Date
12.85 mm Official Zenith October 18, 2026

Lug-to-lug

No source gave this figure yet.

Lug width

Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.

No source gave this figure yet.

Calibre source

Official Zenith · retrieved October 18, 2026

Other Pilot references

Watch Ø Thickness Lug-to-lug Calibre
Pilot Automatic (steel) 03.4000.3620/21.I001 40 mm 12.85 mm — El Primero 3620
Pilot Big Date Flyback (ceramic) 49.4000.3652/21.I001 42.5 mm 14.25 mm — El Primero 3652
Pilot Big Date Flyback (steel) 03.4000.3652/21.I001 42.5 mm 14.25 mm — El Primero 3652

Other Zenith models

Watch Ø Thickness Lug-to-lug Calibre
Chronomaster Solo Sport 03.5000.3620/21.M5000 40 mm 13.13 mm — El Primero 3620
DEFY Skyline Skeleton (ceramic) 49.9300.3620/07.I001 41 mm 11.6 mm — El Primero 3620
DEFY Skyline (steel, 41 mm) 03.9300.3620/01.I001 41 mm 11.6 mm — El Primero 3620
DEFY Skyline Skeleton (18 ct rose gold) 18.9300.3630/78.I001 41 mm 12.2 mm — El Primero 3630
DEFY Skyline Skeleton (steel) 03.9300.3620/78.I001 41 mm 11.6 mm — El Primero 3620
DEFY Skyline (steel, 36 mm) 03.9400.670/01.I001 36 mm 10.35 mm — Elite 670
Show 17 more
Watch Ø Thickness Lug-to-lug Calibre
Chronomaster Open (18 ct rose gold) 18.3300.3604/69.C922 39.5 mm 13.6 mm — El Primero 3604
Chronomaster Open (steel) 03.3300.3604/21.M3300 39.5 mm 13.6 mm — El Primero 3604
Chronomaster Sport (18 ct rose gold) 18.3130.3600/01.R951 41 mm 13.6 mm — El Primero 3600
Chronomaster Sport (steel and rose gold) 51.3102.3600/01.M3100 41 mm 13.6 mm — El Primero 3600
Chronomaster Sport (steel) 03.3100.3600/21.M3100 41 mm 13.6 mm — El Primero 3600
DEFY Extreme Diver 95.9601.3620/51.I301 42.5 mm 15.5 mm — El Primero 3620
DEFY Skyline Chronograph (ceramic) 49.9500.3600/21.I001 42 mm 12.7 mm — El Primero 3600
DEFY Revival A3642 03.A3642.670/01.M3642 37 mm 13.6 mm — Elite 670
Chronomaster Original 03.3200.3600/22.C908 38 mm 12.6 mm — El Primero 3600
Chronomaster Original Triple Calendar 03.3400.3610/38.C911 38 mm 14 mm — El Primero 3610
DEFY Skyline Chronograph (steel) 03.9500.3600/51.I001 42 mm 12.7 mm — El Primero 3600
DEFY Skyline Chronograph Skeleton 03.9500.3600/79.I001 42 mm 12.7 mm — El Primero 3600
Chronomaster Revival El Primero A384 03.A384.400/21.M384 37 mm 12.6 mm — El Primero 400
G.F.J. (18 ct yellow gold) 30.1865.0135/56.C216 39 mm 10.5 mm — Calibre 135
G.F.J. (platinum) 40.1865-2.0135/01.C220 39 mm 10.5 mm — Calibre 135
DEFY Extreme (carbon and titanium) 10.9102.9004/51.I200 45 mm 15.4 mm — El Primero 9004
DEFY Extreme (titanium) 97.9100.9004/80.I209 45 mm 15.4 mm — El Primero 9004

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