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The Index — Vintage watches, decoded.References, dials and variants up to 2000

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IWC Ingenieur 866 AD · The Index

Brands
IWC
Ingenieur
866 AD

Ingenieur 866 AD

1967–19762 variants

Date version of the second-generation Ingenieur with the larger date window and calibre 8541B; renumbered 1808 in 1971/72.

Variants over time

Production years have not been recorded for these variants.

Variants

Black DialUndated
Black dial on the original Gay Frères bracelet; one complete set was sold new in 1970 with its caseback tool.
DateIngenieur lightning-bolt logoSoft-iron inner case

Reference specifications

Brand: IWC
Model: Ingenieur
Reference: 866 AD
Category: Sport
Production: 1967–1976
Case diameter: 37 mm
Water resistance: 120 m
Date: Yes

More specifications (2)

Movement: Automatic

Read more

Wednesday Morning Find: A Vintage IWC Ingenieur With Original Bracelet, Papers, And Caseback ToolRead more at HODINKEE (opens in a new tab)
In-Depth: The History of the IWC Ingenieur Collection (70th Anniversary)Read more at Monochrome (opens in a new tab)

Silver DialUndated

Silver-dial date model, the more common colour.

DateIngenieur lightning-bolt logoSoft-iron inner case

Calibers

8541

Specs shared by all variants. Variant pages show where a variant differs.

All Ingenieur references

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