Orient
Orient Bambino 39 mm Slate Grade
Photography on request
Front view
Dial, hands and bezel as delivered.
Case-back view
Case-back engraving and, where fitted, the sapphire display.
Movement
Calibre with its finishing and decoration.
On the wrist
Worn shot for proportion and strap drape.
Orient · Bambino
Orient Bambino 39 mm Slate Grade
Reference 54638OR.54
Reference at a glance
- Brand
- Orient
- Collection
- Bambino
- Model
- Orient Bambino 39 mm Slate Grade
- Reference number
- 54638OR.54
- Year / era
- 2023 · 2020s — modern production
- Complication
- Time and date
- Movement
- High-accuracy quartz
- Case material
- Grade 5 titanium
- Dial type
- Slate grey
- Strap / bracelet
- White rubber velcro strap
- Water resistance
- 50 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 39 mm
- Case thickness
- 8.1 mm
- Case material
- Grade 5 titanium
- Bezel
- Unidirectional ceramic 60-minute
- Crystal
- Sapphire with internal AR treatment
- Dial
- Slate grey
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- White rubber velcro strap
- Clasp / buckle
- Titanium deployant clasp
- Water resistance
- 50 m
Movement
- Movement / calibre
- Calibre 63E — High-accuracy quartz
- Movement type
- High-frequency automatic
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 65 hours
- Number of jewels
- 25 jewels
- Complications
- Time and date
- Functions
- Annual calendar, moon phase
- Watchmaker
- Finishing, assembly and timing are carried out in the manufacture's own atelier.
Production & market
- Production period
- 2023 – 2036
- 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
Orient Bambino 39 mm Slate Grade sits within Orient's Bambino line, introduced in 2023. It carries the house codes established since 1950 — grade 5 titanium case, slate grey dial and high-accuracy 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 bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
- The movement's bridges are decorated even where they will never be seen once the watch is cased.
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
1950
Shogoro Yoshida founds Orient in Japan.
1969
The quartz era forces Orient to redefine mechanical watchmaking.
1990
Orient enters the modern collector market with its signature lines.
2024
Orient continues to produce Bambino, Kamasu, Star and other icons in limited numbers.