Original 1972 Omega 1250 F300Hz Constellation
Chrono Tuning Fork Watch (ESA 9162) – Fully Serviced
(ref 302)
This superb original 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.
Paypal
only please, with shipment strictly to the buyers Paypal ‘confirmed’ address. Sorry
no offers.
Make/Model:
Omega Constellation Chronometer F300Hz electronic tuning fork watch.
Movement:
Omega 1250 (ESA 9162) with serial no. 34817653 from 1972 year of manufacture,
with ‘quickset’ date function.
Casing:
Stainless steel Omega type ‘198 003’ with Constellation logo to case back.
Omega signed crown. 35mm across not including the crown/lugs.
Dial/hands/Crystal: Original Omega sunburst silver tone dial with silver/black hour
markers. Original hands including red sweep seconds hand. Original Omega
armoured chrome ring crystal.
New/NOS items:
Electronic T-unit coil module. Electronic RC-unit coil module. Date dial.
Leather strap, Omega signed buckle, and spring bars. Correctly sized 344 button
cell battery. Case back and winding stem O-rings.
Replacement items: None.
Service/refurb:
Light hand polish of case to reduce the appearance of
any blemishes. Crystal polished with specialist compound.
Only the best Moebius oils and grease have been used and applied correctly
during the comprehensive service (types 9010, 9020, 8201 Moly, 8200, 8300,
silicone).
Extended bench test accuracy is to within a few seconds per day.
Other: As expected of a vintage watch there are signs of age/patina/marks
etc, but this one is in superb condition overall. 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).
As additional info for those already familiar with these movements - it has
been serviced in accordance with the Omega technical manual, including the
gauged set-up of both the index and retain click jewels, and the exacting and
essential lubrication of the friction wheel with specialist grease. It is
drawing 8/9 micro amps full-load current at 1.35/1.55V, and has been tested to
work correctly over the 1.05 to 1.65V voltage range. All electrical resistance
measurements of coils and transistor are satisfactory.
Important:- Please read the
following notes, to ensure you are happy with them before making a bid:
1. For All Items:
Unless otherwise
stated, used items have normal wear and tear commensurate with age, and all
age/date detail is approximate. No guarantees or warranties given after
dispatch. Postage claims and insurance cover are the responsibility of the
buyer, regardless of the seller options offered. No refunds for cosmetic or non-functional
defects. Any returns must be
received in the same condition as originally sent by the seller, and are
subject only to there being a significant deviation from the above photos and
description. All descriptors (such as ‘good’ ‘excellent’ ‘superb’,
or similar) are used in context with the items age and reasonably expected
usage/wear over its lifetime, are subjective in that they are the opinion of
the seller, and as such might not necessarily be shared by the buyer. The images form the primary description
and the item is ‘sold as photographed’, please study the pictures carefully as
they take precedence over all written information. The item description is
given in good faith; I am not a professional expert so cannot be responsible
for any omissions, but I am happy to answer any questions you may have.
2. In
Addition, for Watches and Clocks:
Used and vintage/antique timepieces are limited in
their ability and their consistency to deliver continuous and accurate time regulation
due to factors such as: Inherent design, age, condition/wear, user handling,
service history, storage and environmental conditions, transit handling, user
winding habits/frequency, and are part of the character and appeal of owning
these collectable items. This finite ability should not be unduly
overestimated, and certainly should not be compared to the expectations of that
of modern-day timepieces. I consider a tolerance of +/-3 minutes per day
accuracy to be good, and +/-1 min per day to be excellent (and most of my wrist
watches are even better than this). Following shipment it is expected that any
timepiece will need a period of settling and adjustment to its time regulation,
regardless of the sellers item description at the time of sale. This should be
performed by a qualified and competent person at the buyers expense. In
addition, unless specifically described as “fully” serviced/cleaned, it is to
be assumed that all timepieces will require some level of service/repair from
the time of their receipt, and at the buyers expense. Buyers should make
allowances for this potential expense when bidding. Vintage watches have no
guarantee of being waterproof regardless of their design or wording, and you
should assume and care for them as though they are not. The seller accepts no
returns or liability from damage or problems arising from buyer initiated
access to, and intervention with watch/clock movements, casings and other
components. The seller accepts no liability or claims relating to issues arising
from any advice or guidance given in good faith after the time of sale.
Please ensure you are happy with the above
notes before making a bid. Thanks.
Thanks for viewing