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For sale we have a beautiful little late 1960s Tissot ladies watch. It is the Seastar Seven model, reference 37550. Despite its 20mm case diameter it has an automatic movement with a central second. It is a high-quality watch, with ingenious waterproof case design. The dial is well executed with a silver linear brushed finish and applied Tissot logo and hour markers. It is presented on a lovely expanding bracelet which catches the eye. Inside is the Tissot calibre 743 movement, which is keeping very good time.


Please see the images as these compliment and aid the description provided below.

A further condition report is below.



The dial is original and in good condition. The silver linear brushed finish is good and bright, with clear signing to the centre. The baton markers are good with black painted centre. They have some slight corrosion.  



The hands are original with no ageing or signs of wear. The hour and minute hand are black painted.



The crystal is original, with only slight marking.



The crown is original. It is in good condition with some slight scratching, functioning as it should.



The case is gold plated and is in decent condition. It has light surface scratching associated with wear, but no deep marks. There is some slight pitting to the gold plating on the sides.



The case back is Stainless Steel and is solid. The original engravings are clear. It has light surface scratching associated with age.



The watch is on a period expanding bracelet. It is in good condition, with some light wear to the gold plating. It will fit any wrist size.



The movement is a Tissot 742, which is an ETA 2550 base calibre. It is an automatic movement with a jewel count of 21 and a higher beat rate of 21,600BPH. It has a date function.


The movement has been recently serviced. It has a daily variation of +10 seconds a day with an amplitude of 275 degrees and a beat error of 0.0m/s.


Case dimensions:

Case width: 20.5mm

Case width with crown: 22.75mm

Case length: 20.25mm

Case length lug to lug: 26.25mm

Case Depth: 9.75mm

Lug width: 9mm

1960s Tissot Seastar Seven ladies automatic ladies watch ref 37550 cal 743

Out of Stock
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