Wear a smartwatch with your IWC Big Pilot

Wear a smartwatch with your IWC Big Pilot

Smartlet is compatible with the IWC Big Pilot. Lug width: 21mm / 22mm - natively supported with no adapter. Installation uses the standard spring-bar system. No modification to the watch required. Fully reversible in seconds.
Explore
Forbes · CNET
|
250+ clients
|
35+ countries
|
CES 2026 · Lépine 2025
|
Patented
IWC Big Pilot compatibility

Wear a smartwatch with your IWC Big Pilot

In short Smartlet is compatible with the IWC Big Pilot. Lug width: 21mm / 22mm - natively supported with no adapter. Installation uses the standard spring-bar system. No modification to the watch required. Fully reversible in seconds.

The Big Pilot traces its lineage to the Beobachtungsuhren - the observer's watches issued to navigators in the 1940s. Large onion crown for gloved operation, cathedral hands coated in Super-LumiNova, Arabic numerals legible at arm's length in low visibility. The Cal. 51111 delivers 168 hours of power reserve - a genuine engineering statement, not a specification exercise. Every element on the dial earns its place. Smartlet adds data capability without changing the instrument.

Wear yours How it works
The problem
Choosing between health data and horological heritage every morning.
The solution
Smartlet One replaces your IWC Big Pilot's strap via the standard spring-bar system and positions your smartwatch on the same wrist. Both watches run simultaneously, with no modification to the watch and full reversibility in seconds.
Model
IWC Big Pilot
Lug width
21mm / 22mm
References
17covered
Reversible
In seconds

Choose your edition

One mechanism. Three personalities.

Every Smartlet One includes the dedicated adapter for your wearable. Pick the finish that matches your style.

Smartlet One - Shadow - Smartlet

For the explorer

Smartlet One - Shadow

€399,00

4.9 (14)

Stealth. Switch in seconds, leave no trace.

  • Material SS316L steel, black PVD
  • Weight ~100g
  • Compatible with Rolex, Omega, Seiko + 100 more
Buy now
Compatibility

IWC Big Pilot models supported

Covered references

17 references covered.

ReferenceMaterialDialLugSmartlet
IW50280218K Red Gold 46mmBlue22mmCompatible
IW510301Titanium 46mmBrown22mmCompatible
IW5002-01Stainless Steel 46mmBlack22mmCompatible
IW5004-01Stainless Steel 46mmBlack22mmCompatible
IW5004-07Stainless Steel 46mmBlue22mmCompatible
IW500901Stainless Steel 46mmBlack22mmCompatible
IW500912Stainless Steel 46mmBlue22mmCompatible
IW501001Stainless Steel 46mmBlack22mmCompatible
IW501002Stainless Steel 46mmBlue22mmCompatible
IW501004Stainless Steel 46mmBlue22mmCompatible
IW501001Stainless Steel 46mmBlack22mmCompatible
IW501002Stainless Steel 46mmBlue22mmCompatible
IW503801Stainless Steel 46mmBlack22mmCompatible
IW501012Ceramic Black 46mmBlack22mmCompatible
IW329301Stainless Steel 43mmBlack21mmCompatible
IW329301Stainless Steel 43mmBlack21mmCompatible
IW329303Stainless Steel 43mmBlue21mmCompatible

IWC Big Pilot lug widths: 21mm / 22mm

The Big Pilot traces its lineage to the Beobachtungsuhren - the observer's watches issued to navigators in the 1940s. Large onion crown for gloved operation, cathedral hands coated in Super-LumiNova, Arabic numerals legible at arm's length in low visibility. The Cal. 51111 delivers 168 hours of power reserve - a genuine engineering statement, not a specification exercise. Every element on the dial earns its place. Smartlet adds data capability without changing the instrument.
Frequently paired

Smartwatches worn with IWC Big Pilot

The most common combinations our customers wear. Find your mechanical watch and discover the right Smartlet edition.

Apple Watch
Series 0 to Ultra 3
Whoop
5.0 / MG
Garmin Forerunner
255 to 965
Samsung Galaxy Watch
Series 4 to 7
Withings ScanWatch
Light / 2 / Nova
View all brands
27 brands covered
Also compatible

Other brands

Other iconic models in the Smartlet compatibility library.

Submariner
Daytona
GMT-Master
Datejust
Yacht-Master
Sky-Dweller
Explorer
Seamaster 300m
Speedmaster
Planet Ocean
Constellation
De Ville
Monaco
Carrera
Formula 1
Aquaracer
Portugieser
Navitimer
Superocean
Avenger
Black Bay
Pelagos
Ranger
Luminor
Radiomir
Submersible
SKX
Prospex
Presage
Khaki Field
BR 03-92
Fifty Fathoms
Reverso
SUB 300
Spring Drive
Essence Leggera
Aquis
Divers Sixty-Five
Chronograph 1
Captain Cook
Superman Heritage
El Primero
Alle anzeigen
Monarch
Black Bay 58 GMT
View all models
Watch brand compatibility guide

Step by step

Replace your strap
01

Replace your strap

Smartlet replaces your mechanical watch strap via the standard spring-bar system. Classic, Shadow, or Titanium. No tools required.

Connect your wearable
02

Connect your wearable

Smartlet uses a dedicated adapter or native lug pins depending on your smartwatch. The connector snaps onto the Smartlet module. Zero modification to the mechanical watch.

Wear both simultaneously
03

Wear both simultaneously

Both watches sit on the same wrist. All smartwatch sensors maintain direct skin contact and operate normally.

Questions

Frequently asked questions

  • Does Smartlet work with the IWC Big Pilot?
    Yes - for all 43mm and 46mm references. These use 21mm or 22mm lugs, natively supported. The 48mm IW510401 uses 26mm lugs - outside the native range.
  • Which IWC Big Pilot references are compatible?
    IW5002, IW5004, IW500901, IW501001, IW501012, IW503801 series at 22mm, and IW329301/IW329303 at 21mm are all compatible. Only the 48mm IW510401 at 26mm falls outside the native range.
  • Does Smartlet affect the Big Pilot 168-hour power reserve?
    No. Smartlet attaches via the spring-bar slots only. The Cal. 51111 movement and its power reserve mechanism are completely unaffected.
  • Where can I buy Smartlet for the IWC Big Pilot?
    Smartlet is available at smartlet.io in Classic, Shadow, and Titanium. All finishes are compatible with IWC Big Pilot references at 21mm and 22mm lug widths.
  • Beschädigt oder verändert Smartlet meine mechanische Uhr?
    Nein. Smartlet ersetzt Ihr Standard-Uhrenarmband mit dem vorhandenen Federstift-System. Es werden keine dauerhaften Änderungen am Uhrengehäuse, den Hörnchen oder dem Zifferblatt vorgenommen. Der Vorgang ist vollständig reversibel und dauert nur Sekunden. Ihre mechanische Uhr bleibt unbeeinträchtigt und kann jederzeit unabhängig getragen werden, indem Sie einfach das Originalarmband wieder anbringen. Smartlet ist nach Uhrmacher-Toleranzen konstruiert und wird mit der gleichen Sorgfalt getestet, die auch in die Uhren fließt, mit denen es kombiniert wird.