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Omega Seamaster 40 mm Mother-of-pearl Quartz
Omega Seamaster 40 mm Mother-of-pearl Quartz — Front view

Front view

Dial, hands and bezel as delivered.

Case-back view

Case-back view

Case-back engraving and, where fitted, the sapphire display.

Movement

Movement

Calibre with its finishing and decoration.

On the wrist

On the wrist

Worn shot for proportion and strap drape.

Omega · Seamaster

Omega Seamaster 40 mm Mother-of-pearl Quartz

Reference 60772OR.33

Reference at a glance

Brand
Omega
Collection
Seamaster
Model
Omega Seamaster 40 mm Mother-of-pearl Quartz
Reference number
60772OR.33
Year / era
1956 · 1950s — pre-quartz mechanical era
Complication
Perpetual calendar
Movement
In-house automatic, Superlative Chronometer
Case material
Quartz TPT
Dial type
Mother-of-pearl
Strap / bracelet
Integrated steel bracelet
Water resistance
50 m
Limited-edition status
Regular production, not a limited edition
Compare this reference

Case, dial & bracelet

Case dimensions
40 mm
Case thickness
9.4 mm
Case material
Quartz TPT
Bezel
Emerald-set
Crystal
Sapphire with internal AR treatment
Dial
Mother-of-pearl
Hands
Blued steel Breguet-style hands
Indexes
Applied Arabic numerals with luminous coating
Bracelet / strap
Integrated steel bracelet
Clasp / buckle
Pin buckle in matching case metal
Water resistance
50 m

Movement

Movement / calibre
Calibre 61B — In-house automatic, Superlative Chronometer
Movement type
Automatic, self-winding
Frequency
36,000 vph (5 Hz)
Power reserve
72 hours
Number of jewels
25 jewels
Complications
Perpetual calendar
Functions
Dive time, running seconds
Watchmaker
The calibre is built in-house and adjusted in five positions before delivery.

Production & market

Production period
1956 – 1970
Limited-edition quantity
Not applicable
Current market information
Trades close to retail on the secondary market, with steady demand for full-set examples.

Designer

Jörg Hysek

Jörg Hysek left Rolex and Seiko's European studios to build a design practice in Geneva, giving houses such as Vacheron Constantin, Breguet, Seiko and TAG Heuer their sculptural, architecture-led cases before founding his own brand, HD3.

Historical significance

Omega Seamaster 40 mm Mother-of-pearl Quartz sits within Omega's Seamaster line, introduced in 1956. It carries the house codes established since 1848 — quartz tpt case, mother-of-pearl dial and in-house automatic, superlative chronometer — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

  • The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
OM

The House

Omega

Brand facts

Founding year
1848
Founder
Louis Brandt
Headquarters
Switzerland
Tier
Luxury
Major collections
Speedmaster, Seamaster, Constellation, De Ville, Aqua Terra, Planet Ocean, Railmaster
Signature technologies
Hand-applied guilloché dials · Composite and ceramic case materials · Certified chronometer regulation
Famous movements
In-house manual-winding · In-house automatic chronograph · In-house automatic, Superlative Chronometer · In-house automatic, chronometer certified
Notable watches
Omega Speedmaster 38 mm Slate Sapphire (1961) · Omega Speedmaster 39 mm Blue Quartz (1952) · Omega Speedmaster 44 mm Meteorite 18k (2001) · Omega Speedmaster 36 mm Slate 18k (1981)

Brand history

Omega has spent more than 178 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Speedmaster, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Louis Brandt established Omega in 1848, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Omega calibre produced today.

Historical milestones

  1. 1848

    Louis Brandt founds Omega in Switzerland.

  2. 1888

    Omega earns its first international recognition for precision timekeeping.

  3. 1969

    The quartz era forces Omega to redefine mechanical watchmaking.

  4. 1990

    Omega enters the modern collector market with its signature lines.

  5. 2024

    Omega continues to produce Speedmaster, Seamaster, Constellation and other icons in limited numbers.

More Seamaster