Omega - Seamaster - No reserve price - Men - 1980-1989

OMEGA SEAMASTER QUARTZ VINTAGE – CAL. 1345 – STEEL – DATE – CIRCA 1977–1980

Brand: Omega
Collection: Seamaster
Origin: Switzerland
Period: late 1970s, approx. 1977–1980
Movement: Omega calibre 1345
Type: vintage analog quartz
Jewels: 7 jewels, according to the movement inscription
Functions: hours, minutes, seconds and calendar
Case: stainless steel
Dial: silver/champagne with vertical finish
Hour markers: applied steel
Calendar: window at 3 o’clock
Caseback: steel with Seamaster medallion
Strap: black leather
Estimated diameter: approx. 35–36 mm excluding crown
With crown: approx. 38 mm
Lug-to-lug: approx. 41–42 mm
Thickness: approx. 10–11 mm
Between the lugs: approx. 18 mm

Measurements are approximate, based on the photographs and documented dimensions of contemporary Seamaster models with calibre 1345; I recommend taking physical measurements with calipers before listing.

DESCRIPTION

Vintage Omega Seamaster Quartz from the late 1970s, made of stainless steel and fitted with the interesting 7-jewel Omega calibre 1345 quartz movement.
A representative piece from a particularly important period in the history of Swiss watchmaking: the transition to high-end electronic quartz movements during the 1970s.

It features a steel case with angular cushion-style lines, a silver/champagne dial with applied markers, a central seconds hand and a date at 3 o’clock.
The dial displays the Ω logo and OMEGA signature, with the following inscriptions below:
Seamaster
QUARTZ
and SWISS MADE at 6 o’clock.
The caseback retains the characteristic Seamaster medallion featuring Omega’s seahorse.

OMEGA CALIBRE 1345 MOVEMENT

This is one of the watch’s interesting features.
The movement is clearly signed:
OMEGA
SWISS
1345
SEVEN 7 JEWELS
UNADJUSTED
and bears the visible number 364385.

The Omega 1345 is an analog quartz movement launched in 1977, belonging to the Omega 1340–1346 family. In this configuration, it is documented as measuring approximately 25.6 mm in diameter, with a frequency of 32,768 Hz and 7 jewels.

Seamaster examples with the 1345 have been documented from approximately 1977; I would therefore cautiously date this watch to the late 1970s, without assigning it an exact year until the inner case reference has been positively identified.

Setting feature
The side of the case also shows the small auxiliary pusher characteristic of this generation of Omega quartz watches. These movements had a less conventional time-setting system than modern quartz watches; the pusher/crown is part of that adjustment system.

DIAL

Original dial with a 1970s look, in a silver/champagne tone with a vertical finish.
Applied Ω logo and OMEGA signature below 12 o’clock.
Applied hour markers, with wider, decorated designs at the cardinal points.
Central steel hour and minute hands, accompanied by a slim central seconds hand.
Date at 3 o’clock, with an applied metal frame.

Seamaster signature in script lettering, with QUARTZ immediately below.

The dial shows clearly visible patina and aging, including specks, small stains and surface changes, especially around the perimeter.

I would not describe it as restored or repainted without a physical inspection; based on the photographs, it shows aging consistent with a vintage watch.

CASE

Stainless steel case with a characteristic 1970s cushion design.
Predominantly brushed finish on the upper surface, combined with polished areas along the sides.

It has scratches, small marks, dings and surface wear from use.

Dirt/residue can also be seen accumulated around the bezel and crystal joint.
The side features a ridged crown and a small correction pusher.

CRYSTAL

Domed crystal, with visible scratches, marks and signs of use.
I would not confirm the exact crystal material from the photographs; I prefer not to advertise it as plexiglass/mineral until it has been physically verified.

SEAMASTER CASEBACK

Circular steel caseback with a brushed finish and
central medallion.

The medallion features the classic Seamaster seahorse/sea monster accompanied by the inscription:

SEAMASTER

It is one of the collection’s characteristic visual elements.

The caseback has scratches and tool marks from previous opening.
INNER CASEBACK

The inside retains the Omega markings:
ACIER INOXYDABLE
Ω logo
OMEGA WATCH Co
FAB. SUISSE
SWISS MADE

as well as a reference number stamped on the lower part.

In your photographs, that number is too faint for me to transcribe with confidence. I would not make up the reference in the listing.

With a focused macro photo of just those numbers, we could probably identify the exact reference.

MEASUREMENTS

For the listing, I would provisionally use:

Case diameter excluding crown: approx. 35–36 mm
With crown: approx. 38 mm
Lug-to-lug: approx. 41–42 mm
Overall thickness: approx. 10–11 mm
Width between lugs: approx. 18 mm

These dimensions have not been physically measured on this example. They are estimates based on the photographs and contemporary Seamaster models with calibre 1345. For example, a 1977 reference 196.0084 with this calibre is documented at 35 × 41 mm, and an ST 196.0082 with a 35.5 mm diameter.

STRAP

Black leather strap with a crocodile-style embossed pattern.
The reverse bears inscriptions such as MADE IN FRANCE and VOGA.
Gold-tone buckle.

I would not claim that the strap or buckle is original Omega, as the photographs do not provide sufficient evidence for that.

CONDITION

Vintage/used condition, with signs of age and use consistent with the photographs.

Case with scratches and surface marks; crystal with scratches and wear; dial with patina, specks and small stains; hour markers and hands showing age; caseback with scratches and opening marks; strap with signs of use.

The movement appears visually complete and is signed Omega, but the photographs do not allow its operation, accuracy or service history to be certified.

If it is currently running correctly, you can replace that last sentence with:
“The watch is currently running. However, as it is a vintage watch, its accuracy is not guaranteed to modern standards, and no service history is available.”

WATER RESISTANCE

I would not currently guarantee any water resistance. Although Seamaster models of this generation were marketed with water-resistance specifications that varied by reference, after approximately half a century the condition of the gaskets, crown, crystal and caseback is decisive.
It is recommended not to get the watch wet unless it has been tested for water resistance by a watchmaker.

HISTORICAL CONTEXT

This Seamaster belongs to an interesting period in Omega’s history.

The calibre 1345 appeared in 1977, during the expansion of Swiss quartz watches. Unlike many later, inexpensive quartz movements, it is a finely made movement with a traditional mechanical gear train, metal components and 7 jewels, electronically controlled by a 32,768 Hz quartz oscillator.

Omega used the 1345 in various Seamaster references in the late 1970s, so this type of watch directly represents the manufacture’s response to the quartz revolution.