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Orient Kamasu 42 mm Mother-of-pearl 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.

Orient · Kamasu

Orient Kamasu 42 mm Mother-of-pearl 18k

Reference 42928OR.88

Reference at a glance

Brand
Orient
Collection
Kamasu
Model
Orient Kamasu 42 mm Mother-of-pearl 18k
Reference number
42928OR.88
Year / era
2006 · 2000s — modern production
Complication
Perpetual calendar
Movement
Eco-Drive solar quartz
Case material
18k yellow gold
Dial type
Mother-of-pearl
Strap / bracelet
Oyster bracelet
Water resistance
150 m
Limited-edition status
Regular production, not a limited edition
Compare this reference

Case, dial & bracelet

Case dimensions
42 mm
Case thickness
9.4 mm
Case material
18k yellow gold
Bezel
Fixed brushed titanium
Crystal
Sapphire with internal AR treatment
Dial
Mother-of-pearl
Hands
Faceted dauphine hands, polished by hand
Indexes
Printed minute track with applied batons
Bracelet / strap
Oyster bracelet
Clasp / buckle
Triple-folding clasp with safety catch
Water resistance
150 m

Movement

Movement / calibre
Calibre 20B — Eco-Drive solar quartz
Movement type
High-frequency automatic
Frequency
28,800 vph (4 Hz)
Power reserve
38 hours
Number of jewels
40 jewels
Complications
Perpetual calendar
Functions
Perpetual calendar, leap year
Watchmaker
Assembled and regulated by a single watchmaker, who signs off the piece before casing.

Production & market

Production period
2006 – 2014
Limited-edition quantity
Not applicable
Current market information
Thin secondary-market supply — pricing is set piece by piece at auction.

Designer

Emmanuel Gueit

Emmanuel Gueit came from a family of Geneva jewellers and was barely into his twenties when he drew the oversized Royal Oak Offshore in 1993 — a watch the house's traditionalists resisted and collectors turned into an icon.

Historical significance

Orient Kamasu 42 mm Mother-of-pearl 18k sits within Orient's Kamasu line, introduced in 2006. It carries the house codes established since 1950 — 18k yellow gold case, mother-of-pearl dial and eco-drive solar quartz — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

  • The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
  • The movement's bridges are decorated even where they will never be seen once the watch is cased.
OR

The House

Orient

Brand facts

Founding year
1950
Founder
Shogoro Yoshida
Headquarters
Japan
Tier
Japanese
Major collections
Bambino, Kamasu, Star, Mako, Revival
Signature technologies
In-house hairspring production · Hand-applied guilloché dials
Famous movements
High-accuracy quartz · Automatic, 24 jewels · Eco-Drive solar quartz · Spring Drive
Notable watches
Orient Bambino 37 mm Blue Ceramic (2003) · Orient Bambino 41 mm Blue Quartz (1981) · Orient Bambino 37 mm Mother-of-pearl Carbon (1990) · Orient Kamasu 43 mm Blue Quartz (1999)

Brand history

Orient has spent more than 76 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Bambino, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Shogoro Yoshida established Orient in 1950, working from Japan at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Orient calibre produced today.

Historical milestones

  1. 1950

    Shogoro Yoshida founds Orient in Japan.

  2. 1969

    The quartz era forces Orient to redefine mechanical watchmaking.

  3. 1990

    Orient enters the modern collector market with its signature lines.

  4. 2024

    Orient continues to produce Bambino, Kamasu, Star and other icons in limited numbers.

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