For sale is a really nice vintage Tissot Seastar Navigator chronograph from the 1970s, on the original signed Tissot bracelet. This is the silver “yachting” dial variant with the blue/red 30-minute sub-dial and orange chrono hands, powered by the manual-wind Valjoux 7734 (Tissot cal. 2070) movement.  Specs: • Brand/Model: Tissot Seastar Navigator Chronograph • Movement: Manual-wind Valjoux 7734, 2-register chrono with date  • Case: Stainless steel tonneau case, ~40mm across (without crown), 20mm lug width, acrylic crystal, black tachymeter bezel  • Dial: Silver sunburst with tritium plots, orange chrono seconds and minute hand, blue/red regatta sector at 3, framed date at 6  • Bracelet: Signed Tissot bracelet & clasp Condition: • Dial & hands: Original with nicely aged tritium. Lume plots and hands have even patina; prints and colored sectors are still crisp. • Case: Sharp cushion case with original brushing still visible. Normal surface wear and small marks from use, but no polishing. • Crystal: Domed acrylic with light marks consistent with age. • Bezel: Black tachymeter bezel present and fully legible, showing very light wear. • Bracelet: Original signed bracelet is in great shape. Timekeeping / function: • On my timegrapher it’s running excellent around ±15s/day with amplitude over 330° in dial-up. • Chronograph starts, stops, and resets cleanly to zero. • Date flips as it should. • Service history is unknown