IWC Watch Dimensions: Diameter, Thickness, Lug-to-Lug

IWC sizing skews larger than most luxury Swiss makers - Big Pilot 43mm and 46.2mm, Portugieser Chronograph 41mm but with 13.1mm thickness, Aquatimer Chronograph 44mm × 17mm. The 2023 Ingenieur 40 brought a 40mm × 10.7mm sport-luxury option back to the lineup.

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Family	Model	Reference	Diameter	Thickness	Lug-to-Lug	Lug Width	Bracelet Taper	Water	Movement
Pilot	Big Pilot's Watch 46	IW501001	46.2 mm	15.4 mm	54.4 mm	22 mm	22 → 20 mm (leather)	60 m	Cal. 52110
Pilot	Big Pilot's Watch 43	IW329301	43 mm	13.6 mm	51.4 mm	21 mm	21 → 18 mm (leather)	100 m	Cal. 82100
Pilot	Big Pilot Perpetual Calendar	IW503605	46.2 mm	15.4 mm	54.4 mm	22 mm	22 → 20 mm (leather)	60 m	Cal. 52615
Pilot	Big Pilot's Watch 43 Top Gun	IW329801	43 mm	13.6 mm	51.4 mm	21 mm	21 → 18 mm (rubber)	100 m	Cal. 82100
Pilot	Pilot's Watch Chronograph 41	IW388101	41 mm	14.5 mm	50.5 mm	20 mm	20 → 18 mm (leather)	100 m	Cal. 69385
Pilot	Pilot's Watch Chronograph 43	IW377710	43 mm	15.2 mm	52.0 mm	22 mm	22 → 20 mm (leather)	60 m	Cal. 79320
Pilot	Mark XX	IW328201	40 mm	10.8 mm	48.5 mm	20 mm	20 → 18 mm	100 m	Cal. 32111
Pilot	Pilot's Watch Timezoner	IW395001	46 mm	15.3 mm	54.0 mm	22 mm	22 → 20 mm (leather)	60 m	Cal. 82760
Portugieser	Portugieser Automatic 42	IW501705	42.4 mm	14.2 mm	50.5 mm	21 mm	21 → 18 mm (leather)	50 m	Cal. 52011
Portugieser	Portugieser Automatic 40	IW358304	40.4 mm	12.4 mm	48.0 mm	20 mm	20 → 18 mm (leather)	50 m	Cal. 82200
Portugieser	Portugieser Chronograph	IW371617	41 mm	13.1 mm	49.0 mm	20 mm	20 → 18 mm (leather)	30 m	Cal. 69355
Portugieser	Portugieser Perpetual Calendar	IW344205	44.2 mm	15.4 mm	52.0 mm	22 mm	22 → 20 mm (leather)	30 m	Cal. 51614
Portugieser	Portugieser Yacht Club Chrono	IW390507	44.6 mm	14.4 mm	52.0 mm	22 mm	22 → 20 mm (rubber)	60 m	Cal. 89361
Portugieser	Portugieser Eternal Calendar	IW505701	44.4 mm	14.9 mm	52.0 mm	22 mm	22 → 20 mm (leather)	30 m	Cal. 52640
Portofino	Portofino Automatic 40	IW356502	40 mm	9.6 mm	48.0 mm	20 mm	20 → 18 mm (leather)	30 m	Cal. 35111
Portofino	Portofino Chronograph	IW391036	42 mm	14 mm	50.0 mm	21 mm	21 → 18 mm (leather)	30 m	Cal. 79320
Portofino	Portofino Automatic 37	IW458104	37 mm	10 mm	44.0 mm	18 mm	18 → 15 mm (leather)	30 m	Cal. 35111
Ingenieur	Ingenieur Automatic 40	IW328902	40 mm	10.7 mm	45.7 mm	integrated	integrated bracelet	100 m	Cal. 32111
Ingenieur	Ingenieur Automatic 35	IW324902	35 mm	9.6 mm	40.9 mm	integrated	integrated bracelet	100 m	Cal. 32115
Ingenieur	Ingenieur Perpetual Calendar	IW344801	41.6 mm	12.4 mm	46.5 mm	integrated	integrated bracelet	100 m	Cal. 82600
Aquatimer	Aquatimer Automatic 42	IW329005	42 mm	14 mm	50.0 mm	22 mm	22 → 20 mm (rubber)	300 m	Cal. 35111
Aquatimer	Aquatimer Chronograph	IW376903	44 mm	17 mm	52.0 mm	22 mm	22 → 20 mm (rubber)	300 m	Cal. 89365
Aquatimer	Aquatimer Perpetual Digital Date-Month	IW379401	49 mm	19.7 mm	55.0 mm	24 mm	24 → 22 mm (rubber)	100 m	Cal. 89802
Da Vinci	Da Vinci Automatic 40	IW458301	40 mm	11.4 mm	46.5 mm	20 mm	20 → 18 mm (leather)	30 m	Cal. 35111
Da Vinci	Da Vinci Perpetual Calendar	IW392101	42 mm	14.6 mm	48.0 mm	21 mm	21 → 18 mm (leather)	30 m	Cal. 89630
Pilot	Pilot's Watch Chronograph 41 Top Gun	IW389106	41 mm	14.5 mm	50.5 mm	20 mm	20 → 18 mm (rubber)	100 m	Cal. 69385
Pilot	Pilot's Watch UTC 41	IW326801	41 mm	12 mm	50.0 mm	20 mm	20 → 18 mm	100 m	Cal. 32760

Specs from the manufacturer's published technical data. Lug-to-lug values reflect commonly-cited caliper measurements where the manufacturer does not publish them and may vary by ±0.5 mm. References cover the principal current production variants per family - bezel, dial, and metal-option references usually share case dimensions.

IWC Watch Dimensions

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