Tissot Seastar 40522

Tissot Seastar Navigator Tissot Seastar Navigator Valjoux 7733 Chronograph 1969/1970

Basic Info Listing code : PTUHB5 Brand : Tissot Model : Seastar Reference number : 40522 Movement : Manual winding Case material : Steel Bracelet material : Leather Year of production : 1970 (Approximation) Condition : Used (Very good) Scope of delivery : No original box, no original papers Gender : Men's watch/Unisex Location : United Kingdom Price : 895 Availability : Item is in stock Caliber Movement : Manual winding Case Case material : Steel Case diameter : 40 x 43 mm Bezel material : Steel Dial : Silver Bracelet/strap Bracelet material : Leather Bracelet color : Brown Description: This vintage Tissot Seastar Navigator dates from around 1969, confirmed by its serial number (16,174,798). The watch features a solid stainless-steel cushion case measuring approximately 40 mm across (43 mm lug-to-lug). The dial is silver sunburst with applied baton hour markers and tritium lume plots that have aged evenly to a warm tone. The original bi-compax chronograph layout includes a running-seconds register at 9 o’clock and a 30-minute counter at 3 o’clock, accented by a blue sector segment for legibility. A tachymeter scale encircles the outer chapter ring, giving the watch its racing-instrument aesthetic. The original T-logo hands are intact, with the chronograph sweep hand in red for contrast. The date window sits cleanly at 6 o’clock. The acrylic crystal shows minor signs of age but retains excellent clarity. The movement, visible in the photos, is the correct Tissot-signed Valjoux 7733, a robust Swiss cam-lever chronograph calibre operating at 18,000 vph with approximately 45 hours of power reserve. It runs, resets and functions correctly. The bridges and screws show no corrosion or damage, confirming an honest and well-preserved example. The case retains its original profile with minor wear consistent with age. The black tachymeter bezel remains legible. It is fitted with a new tan perforated leather rally strap (aftermarket, unworn) that complements the vintage motorsport design perfectly. Specifications: Brand: Tissot Model: Seastar Navigator Chronograph Year: c. 1969–1970 Reference: (unmarked externally; period Navigator series) Serial number: 16174798 Movement: Valjoux 7733 – manual winding, 17 jewels, 18 000 vph, 45 h power reserve Case material: Stainless steel Case size: 40 mm × 43 mm (excluding crown) Crystal: Acrylic Dial: Silver sunburst with black tachymeter scale, date at 6 o’clock Functions: Hours, minutes, small seconds, 30-minute chronograph, date Bracelet: New brown leather perforated strap, stainless-steel buckle Lug width: 20 mm Water resistance: Not tested / not guaranteed due to vintage age Condition Overall very good vintage condition. The dial is original and shows attractive light patina; no repainting or over-polishing. Case edges remain well-defined. The movement is clean and functions properly, starting, stopping, and resetting crisply. Service history is unknown, so a check by a watchmaker is recommended for optimal long-term accuracy. All components appear original, including the signed crown and pushers. The new strap makes it ready for immediate wear. Provenance & Collectability The Valjoux 7733 movement was used by Heuer, Hamilton, and Breitling during the same period, making the Seastar Navigator a high-value entry into classic Swiss chronographs. Tissot’s 1960s–70s chronographs are increasingly recognised for their build quality and direct link to Lemania’s chronograph expertise. The silver-dial variant with blue sub-register accent is especially sought after.