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Casio Pro Trek 44 mm Silvered 18k

Photography on request

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.

Casio · Pro Trek

Casio Pro Trek 44 mm Silvered 18k

Reference 62706OR.64

Reference at a glance

Brand
Casio
Collection
Pro Trek
Model
Casio Pro Trek 44 mm Silvered 18k
Reference number
62706OR.64
Year / era
1950 · 1950s — pre-quartz mechanical era
Complication
Time only
Movement
Spring Drive
Case material
18k white gold
Dial type
Silvered opaline
Strap / bracelet
Alligator leather with folding clasp
Water resistance
50 m
Limited-edition status
Limited edition of 250 pieces
Compare this reference

Case, dial & bracelet

Case dimensions
44 mm
Case thickness
8.8 mm
Case material
18k white gold
Bezel
Emerald-set
Crystal
Flat sapphire with Cyclops lens
Dial
Silvered opaline
Hands
Skeletonised sword hands, white luminescent
Indexes
Diamond-set hour markers
Bracelet / strap
Alligator leather with folding clasp
Clasp / buckle
Titanium deployant clasp
Water resistance
50 m

Movement

Movement / calibre
Calibre 4A — Spring Drive
Movement type
Manual-winding
Frequency
21,600 vph (3 Hz)
Power reserve
38 hours
Number of jewels
21 jewels
Complications
Time only
Functions
Hours, minutes, small seconds
Watchmaker
The calibre is built in-house and adjusted in five positions before delivery.

Production & market

Production period
1950 – 1959
Limited-edition quantity
250 pieces
Current market information
Trades close to retail on the secondary market, with steady demand for full-set examples.

Designer

Marc Newson

Marc Newson is an Australian industrial designer whose work spans Qantas cabins, Apple hardware and Jaeger-LeCoultre's Atmos clocks; his watch design reduces the object to pure geometry and legibility.

Historical significance

Casio Pro Trek 44 mm Silvered 18k sits within Casio's Pro Trek line, introduced in 1950. It carries the house codes established since 1946 — 18k white gold case, silvered opaline dial and spring drive — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

  • The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
  • The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
  • The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
CA

The House

Casio

Brand facts

Founding year
1946
Founder
Tadao Kashio
Headquarters
Japan
Tier
Japanese
Major collections
G-Shock, Edifice, Oceanus, Pro Trek, Vintage
Signature technologies
In-house hairspring production · Shock-absorbing movement mounting
Famous movements
Spring Drive · Eco-Drive solar quartz · Automatic, 24 jewels · High-accuracy quartz
Notable watches
Casio G-Shock 39 mm Blue 18k (1998) · Casio G-Shock 42 mm Black Ceramic (2002) · Casio G-Shock 43 mm Salmon 18k (1985) · Casio G-Shock 42 mm Silvered Sapphire (2004)

Brand history

Casio has spent more than 80 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's G-Shock, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Tadao Kashio established Casio in 1946, working from Japan at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Casio calibre produced today.

Historical milestones

  1. 1946

    Tadao Kashio founds Casio in Japan.

  2. 1969

    The quartz era forces Casio to redefine mechanical watchmaking.

  3. 1990

    Casio enters the modern collector market with its signature lines.

  4. 2024

    Casio continues to produce G-Shock, Edifice, Oceanus and other icons in limited numbers.

More Pro Trek