1973 Swiss Tissot ‘Tissonic’ Electronic  Tuning Fork Watch cal 2010 (ESA 9162, F300Hz) – Fully Serviced    (ref 1571)

** No offers please on this competitively priced watch **

This vintage watch has been fully serviced following a complete strip down, clean, reassembly, and correct lubrication and timing.

It has the iconic ESA chronometer electronic tuning fork movement, known as the ‘hummer’ from its distinctive sound, and has been brought up to spec with the addition of the new, new old stock (NOS), and replacement parts listed below.

Make/Model: Tissot ‘Tissonic Electronic’ tuning fork watch.

Movement: Tissot 2010 (ESA9162) with serial no. 16697738 from 1973 year of manufacture, and with ‘quickset’ date function.

Casing: Gold plated and stainless steel Tissot TV shaped case type ‘40.800’ with correct screw down rear cover (stamped ‘Plaque Or G 20 microns’ to denote the gold one bezel). Original Tissot signed crown. 38mm x 42mm not including the crown.

Dial/hands/Crystal:  Original Tissot champagne tone dial with subtle ‘sunburst’ brushed effect, and with black/gold hour markers. Original Tissot matching hands set in gold tone. Original bespoke Tissot crystal.

New/NOS items: 20mm brown leather strap, complete with matching gold tone buckle and sturdy spring bars. Correctly sized 344 button cell battery. Case back o-ring seal. Crystal seal. Crown micro o-ring seal.

Replacement items:  None.

Service/refurb: Only the best Moebius oils and grease have been used and applied correctly during the comprehensive service (types 9010, 9020, 8201 Moly, 8200, silicone). All relevant parts demagnetised.
Light hand clean of the case components. Crystal polished with specialized compound to reduce the appearance of any blemishes. Extended test accuracy (on bench, dial up/down) is excellent, within a few seconds average per day.

Other: As expected of a vintage watch there are some signs of age/patina/marks etc. As with most vintage watches it no longer has its original box or paperwork.
Note that my vintage watches have no guarantee of being water resistant/proof, and you should assume they are not.
The crown is pulled out to the mid stage to ‘quickset’ the date in either direction; it is then pulled out a stage further in order to set the hands (or store the watch as this is also the power Off position).
A black strap is shown in a couple of the photos but it is fitted and will be shipped with a brown strap with matching gold tone buckle.

As additional info for those already familiar with these movements - it has been serviced in accordance with the ESA technical manual, including the gauged set-up of both the index and pawl jewels, and the exacting and essential lubrication of the friction wheel with specialist grease. It is drawing 9.4/10.4 micro amps full-load current at 1.35/1.55V, and has been tested to work correctly over the 1.05 to 1.70V voltage range. All electrical resistance measurements of coils and transistor are satisfactory.