Thumbnail [WTS] Professionally serviced 1971 IWC Blue Dial Tonneau cal.423 - $1700 (FNAL REDUCTION) 1

Thumbnail [WTS] Professionally serviced 1971 IWC Blue Dial Tonneau cal.423 - $1700 (FNAL REDUCTION) 2

Thumbnail [WTS] Professionally serviced 1971 IWC Blue Dial Tonneau cal.423 - $1700 (FNAL REDUCTION) 3

Thumbnail [WTS] Professionally serviced 1971 IWC Blue Dial Tonneau cal.423 - $1700 (FNAL REDUCTION) 4

Model:	IWC CAL 89	Last Scraped:	Oct. 16, 2025, 10:17 p.m.
Username:	Cream-Cheezy	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Hello WatchEx, Today I bring you this beautiful 1971 IWC ref. 2582, freshly serviced and sporting a bespoke round-scale alligator strap (from Monstraps). The white roman numerals stick out boldly against the blue dial, which ranges from a deep to ice blue depending on lighting. This watch is in immaculate condition for its age, and even still maintains the original case finish. Its dimensions are 28x35 (incl. lugs), with a thickness of around 6.5mm, which is aided by the incredibly-thin IWC cal.423 inside. As the dimensions suggest, this watch wears quite similarly to size large cartier tank must. I do also have the original bracelet for this piece, which will be included when shipped. Timestamp: https://imgur.com/a/3sRoXMr Asking $1700 for this piece shipped (CONUS). If you have any questions regarding this piece, or any of the other watches I have up for sale at this point, feel free to reach out at any time. Thank you :)

First Posted:	3 months ago	# of Reposts:	4
Starting Price:	$2,650	Price Change:	36% lower

Hide Reposts (1)

First Posted	3 months ago	[WTS] 1972 IWC Blue Dial Tonneau cal.423	$2,650
Repost	3 months ago	[WTS] Professionally serviced 1972 IWC Blue Dial Tonneau cal.423 - $2650	$2,650
Price Change	1 month ago	[WTS] 1972 IWC Blue Dial Tonneau cal.423 - $1950	$1,950
Price Change	3 weeks ago	[WTS] Professionally serviced 1971 IWC Blue Dial Tonneau cal.423 - $1700 (FNAL REDUCTION)	$1,700

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Highest:	$3,650	Lowest:	$499
Median:	$1,749.50	Std. Dev:	±$963.37

Estimated Private Party Value $1,063 — $2,500


	Established:	1868
	Website:	http://www.iwc.com/en-us/
	Country of Origin:	Switzerland

As a premium brand in the international luxury watch segment, IWC has committed itself to the manufacture of top-quality products in haute horlogerie. More than 1100 employees, including 120 eminently qualified watchmakers, are involved in the development, manufacture and distribution of perfect mechanical masterpieces. The renowned watch manufacturer in eastern Switzerland has over 900 sales outlets worldwide, including more than 60 IWC boutiques in cities such as New York, Beijing, Dubai, Hong Kong, Geneva, Paris and Moscow. Since 2000, the company has been part of the Swiss Richemont Group.

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