The Longines1948 Tank Case 17 Jewels Cal. 23Z Swiss 26mm Swiss Wristwatch 10K G.F. (Reference Longines Cal. 23Z) is a Gold/Steel cased luxury wristwatch by Longines introduced in 1948. The case measures 26 mmmm with a Champagne dial on a Leather bracelet. Powered by a Manual winding movement.

On TheWatchInfo, the Longines1948 Tank Case 17 Jewels Cal. 23Z Swiss 26mm Swiss Wristwatch 10K G.F. is tracked across the secondary market in real time. There are currently 1 active listing. Listings are sourced from Dealer. Price history, trend analysis, and condition breakdowns are available on this page.

Longines watches are among the most actively traded on the pre-owned market. The Longines1948 Tank Case 17 Jewels Cal. 23Z Swiss 26mm Swiss Wristwatch 10K G.F. Ref. Longines Cal. 23Z is sought after by collectors for its gold/steel case construction and champagne dial. Buyers and sellers use TheWatchInfo to track real-time price movements, compare listings across platforms, and understand fair market value before transacting.

When purchasing a pre-owned Longines1948 Tank Case 17 Jewels Cal. 23Z Swiss 26mm Swiss Wristwatch 10K G.F. Ref. Longines Cal. 23Z, key factors to consider include the condition grade (unworn, mint, excellent, good), presence of original box and papers, service history, and whether the watch has been modified. Prices for examples with full box and papers typically command a 10–20% premium over card-only or watch-only examples. Use the listings and price history on this page to benchmark what a fair price looks like right now.