35 - 35. Heuer. A stainless steel automatic calendar wristwatch M…

Estimate €4,000 - €6,000

Description

35. Heuer. A stainless steel automatic calendar wristwatch Model: Solunar Reference: 279.603 Date: Circa 1976 Movement: 17-jewel Cal.2790-1 automatic Dial: Brushed blue, cream- colored baton hour markers, white outer minute divisions, black and white 2-week (marked for 14 days) revolving inner bezel, day and date window at 3, cream-colored hands with luminous inserts, center seconds Case: Polished top case with brushed and polished screw back, bi-directional bezel, crown at 2 for time and calendar setting, crown at 4 for day setting, No.3277xx Strap/Bracelet: Dark blue leather Buckle/Clasp: HEUER signed steel buckle Signed: Case, dial & movement Size: 43mm Boating and yachting watches are an important field for a sports device manufacturer. The Solunar was made to measure the tides and the name 'Solunar' is a synthesis of 'sol' (sun) and 'lunar' (moon). The Heuer Solunar has a long history in the Heuer portfolio since the 1950's and the Solunar depicted here was the first tidal watch with an automatic movement. The watch provides a bilingual weekday function and can be set either in French or English. The two swivels must be adjusted every two weeks and the distance between the markings on the inner ring measure a time span of 50 minutes on the dial. This interval is considered a practical average by experts for the daily change in the timing of the tide. The inner ring lists 14 days and the first mark of 'Mon' for Monday is set by turning the crown to the appropriate hour of the dial on which high-tide is to fall on the given Monday. Accurate information as to the timing of the tides is to be taken from newspapers or published tide tables found in harbours. The inner ring is set with this simple operation of the crown and enables the simple referencing of the time at which high-tide will begin for each and every day of the week for two weeks' time. The outer ring bears tide markers and a tide-cycle lasts approximately 12 hours with each ebb and flow of the tide approximately 6 hours. The outer ring can be set to mark high tide on a specific date via the inner ring's adjacency to the date window. Launched in 1975, the Heuer Solunar was advertised in the 1976, 1977 and 1978 catalogues and is an extremely rare collector's piece in this great condition.

About the sale Paris Fine Watches

Auction location

Auction time 06/17/2026 at 2:00 PM

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