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.
Mido · Baroncelli
Mido Baroncelli 37 mm Slate Platinum
Reference 57383OR.91
Reference at a glance
- Brand
- Mido
- Collection
- Baroncelli
- Model
- Mido Baroncelli 37 mm Slate Platinum
- Reference number
- 57383OR.91
- Year / era
- 1971 · 1970s — quartz-crisis era
- Complication
- Moon phase
- Movement
- Quartz
- Case material
- Platinum 950
- Dial type
- Slate grey
- Strap / bracelet
- Rubber strap with titanium clasp
- Water resistance
- 30 m
- Limited-edition status
- Limited edition of 250 pieces
Case, dial & bracelet
- Case dimensions
- 37 mm
- Case thickness
- 10.2 mm
- Case material
- Platinum 950
- Bezel
- Fluted 18k gold
- Crystal
- Anti-reflective sapphire, double-domed
- Dial
- Slate grey
- Hands
- Faceted dauphine hands, polished by hand
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- Rubber strap with titanium clasp
- Clasp / buckle
- Pin buckle in matching case metal
- Water resistance
- 30 m
Movement
- Movement / calibre
- Calibre 70C — Quartz
- Movement type
- Automatic with micro-rotor
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 72 hours
- Number of jewels
- 27 jewels
- Complications
- Moon phase
- Functions
- Chronograph, tachymeter, date
- Watchmaker
- Finishing, assembly and timing are carried out in the manufacture's own atelier.
Production & market
- Production period
- 1971 – 1980
- Limited-edition quantity
- 250 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
Mido Baroncelli 37 mm Slate Platinum sits within Mido's Baroncelli line, introduced in 1971. It carries the house codes established since 1918 — platinum 950 case, slate grey dial and quartz — 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 reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
The House
Mido
Brand facts
- Founding year
- 1918
- Founder
- Georges Schaeren
- Headquarters
- Switzerland
- Tier
- Affordable & Tool Watches
- Major collections
- Ocean Star, Multifort, Baroncelli, Commander
- Signature technologies
- Proprietary case-hardening and polishing · Hand-applied guilloché dials · Composite and ceramic case materials
- Famous movements
- Automatic, 38-hour reserve · Quartz · Automatic Powermatic 80 · Automatic COSC chronometer
- Notable watches
- Mido Ocean Star 39 mm Green Platinum (1988) · Mido Ocean Star 40 mm Blue Sapphire (1979) · Mido Ocean Star 36 mm Salmon 18k (1959) · Mido Multifort 37 mm Green Carbon (1979)
Brand history
Mido has spent more than 108 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Ocean Star, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Georges Schaeren established Mido in 1918, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Mido calibre produced today.
Historical milestones
1918
Georges Schaeren founds Mido in Switzerland.
1969
The quartz era forces Mido to redefine mechanical watchmaking.
1990
Mido enters the modern collector market with its signature lines.
2024
Mido continues to produce Ocean Star, Multifort, Baroncelli and other icons in limited numbers.