Lug-to-lug 45.7 mm 1.80 in
Case 40 mm 1.57 in
Thickness 10.8 mm 0.43 in
Lug width Not provided Not provided
Wrist fit analyzer
Fit reference
Flat wrist width54.1 mmFit ratio0.84
Too smallIdealLargeToo large
Balanced
Likely to sit comfortably within the wrist width for most wearers.
Sources
- https://press.iwc.com/iwc-schaffhausen-revisits-gerald-gentas-iconic-design-with-the-new-ingenieur-automatic-40-en/
IWC press release states the Ingenieur Automatic 40 has a 45.7 mm lug-to-lug distance and a 40 mm case.
- https://www.fratellowatches.com/iwc-ingenieur-automatic-40-integrated-bracelet-genta-design-iw3289-review-2023-live-pics-price/
Hands-on coverage repeats the 45.7 mm lug-to-lug measurement and the 40 mm case size.
- https://timeandtidewatches.com/iwc-ingenieur-automatic-40-hands-on/
Hands-on review confirms the 45.7 mm lug-to-lug and 10.8 mm thickness.
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