Minase
Minase Horizon 38 mm Mother-of-pearl 18k
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.
Minase · Horizon
Minase Horizon 38 mm Mother-of-pearl 18k
Reference 63831OR.44
Reference at a glance
- Brand
- Minase
- Collection
- Horizon
- Model
- Minase Horizon 38 mm Mother-of-pearl 18k
- Reference number
- 63831OR.44
- Year / era
- 2005 · 2000s — modern production
- Complication
- Time only
- Movement
- High-accuracy quartz
- Case material
- 18k white gold
- Dial type
- Mother-of-pearl
- Strap / bracelet
- NATO textile strap
- Water resistance
- 50 m
- Limited-edition status
- Limited edition of 88 pieces
Case, dial & bracelet
- Case dimensions
- 38 mm
- Case thickness
- 9.4 mm
- Case material
- 18k white gold
- Bezel
- Octagonal with 8 hexagonal screws
- Crystal
- Anti-reflective sapphire, double-domed
- Dial
- Mother-of-pearl
- Hands
- Blued steel Breguet-style hands
- Indexes
- Diamond-set hour markers
- Bracelet / strap
- NATO textile strap
- Clasp / buckle
- Triple-folding clasp with safety catch
- Water resistance
- 50 m
Movement
- Movement / calibre
- Calibre 33A — High-accuracy quartz
- Movement type
- High-frequency automatic
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 45 hours
- Number of jewels
- 27 jewels
- Complications
- Time only
- Functions
- Hours, minutes, seconds, date
- Watchmaker
- The calibre is built in-house and adjusted in five positions before delivery.
Production & market
- Production period
- 2005 – 2010
- Limited-edition quantity
- 88 pieces
- Current market information
- Consistently trades above retail; waiting lists at authorised dealers remain long.
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
Minase Horizon 38 mm Mother-of-pearl 18k sits within Minase's Horizon line, introduced in 2005. It carries the house codes established since 2005 — 18k white gold case, mother-of-pearl 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 case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
- The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
The House
Minase
Brand facts
- Founding year
- 2005
- Founder
- Kyowa Co. / Susumu Kitamura
- Headquarters
- Japan
- Tier
- Japanese
- Major collections
- Divido, Five Windows, Horizon, Masterpiece
- Signature technologies
- In-house hairspring production · Proprietary case-hardening and polishing
- Famous movements
- Automatic, 24 jewels · Eco-Drive solar quartz · High-accuracy quartz · Spring Drive
- Notable watches
- Minase Divido (2000) · Minase Horizon (2001) · Minase Uruga (2002)
Brand history
Minase has spent more than 21 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Divido, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Kyowa Co. / Susumu Kitamura established Minase in 2005, working from Japan at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Minase calibre produced today.
Historical milestones
2005
Kyowa Co. / Susumu Kitamura founds Minase in Japan.
2024
Minase continues to produce Divido, Five Windows, Horizon and other icons in limited numbers.