IWC Pilot Watch Lug Widths
| Reference Number | Model Name | Lug Width |
| IW3201/IW3261 | Pilot Antoine De Saint | 21mm |
| IW3240/IW3241/IW3242 | Pilot 36mm | 18mm |
| IW3247/IW3248 | Pilot Mark XVIII | 20mm |
| IW3251 | Pilot Spitfire UTC | 20mm |
| IW3253 | Pilot Mark XV | 19mm |
| IW3255 | Pilot Mark XVI | 20mm |
| IW3256 | Pilot Watch Midsize | 16mm |
| IW3262 | Pilot Worldtimer | 22mm |
| IW3265/IW3268/IW3269 | Pilot Mark XVII | 20mm |
| IW327X/IW328X | Pilot | 20mm |
| IW370X | Pilot Chronograph | 20mm |
| IW371X | Pilot Chronograph | 21mm |
| IW374X | Pilot Mecaquartz | 18mm |
| IW3757/IW3777 | Pilot Chronograph | 21mm |
| IW3778 | Pilot Double Chrono | 22mm |
| IW3779/IW3780 | Pilot Chronograph | 21mm |
| IW3791/IW3799 | Pilot Chronograph | 22mm |
| IW3878 | Pilot Chronograph | 21mm |
| IW3879 | Pilot Chronograph | 20mm |
| IW3880 | Pilot Chronograph | 22mm |
| IW3881/IW3883 | Pilot Chronograph | 20mm |
| IW3888/IW3890/IW3891 | Pilot Chronograph | 21mm |
| IW3894 | Pilot Chronograph | 20mm |
| IW3922 | Pilot Perpetual Calendar | 21mm |
| IW3950/IW3955/IW3956 | Pilot Timezoner | 22mm |
