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.
Rolex · Milgauss
Rolex Milgauss 40 mm Skeletonised Grade
Reference 22553OR.74
Reference at a glance
- Brand
- Rolex
- Collection
- Milgauss
- Model
- Rolex Milgauss 40 mm Skeletonised Grade
- Reference number
- 22553OR.74
- Year / era
- 2017 · 2010s — modern production
- Complication
- Flyback chronograph
- Movement
- In-house automatic chronograph
- Case material
- Grade 5 titanium
- Dial type
- Skeletonised
- Strap / bracelet
- White rubber velcro strap
- Water resistance
- 50 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 40 mm
- Case thickness
- 12.6 mm
- Case material
- Grade 5 titanium
- Bezel
- Bidirectional 24-hour Cerachrom
- Crystal
- Anti-reflective sapphire, double-domed
- Dial
- Skeletonised
- Hands
- Mercedes hour hand with Chromalight display
- Indexes
- Applied Arabic numerals with luminous coating
- Bracelet / strap
- White rubber velcro strap
- Clasp / buckle
- Titanium deployant clasp
- Water resistance
- 50 m
Movement
- Movement / calibre
- Calibre 51F — In-house automatic chronograph
- Movement type
- Manual-winding
- Frequency
- 36,000 vph (5 Hz)
- Power reserve
- 55 hours
- Number of jewels
- 25 jewels
- Complications
- Flyback chronograph
- Functions
- Perpetual calendar, leap year
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 2017 – 2025
- Limited-edition quantity
- Not applicable
- Current market information
- Trades close to retail on the secondary market, with steady demand for full-set examples.
Designer
In-house design studio
The reference was drawn by the manufacture's internal design office, where case, dial and movement architects work alongside the watchmakers rather than as an outside commission.
Historical significance
Rolex Milgauss 40 mm Skeletonised Grade sits within Rolex's Milgauss line, introduced in 2017. It carries the house codes established since 1905 — grade 5 titanium case, skeletonised dial and in-house automatic chronograph — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
- The movement's bridges are decorated even where they will never be seen once the watch is cased.
- The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
The House
Rolex
Brand facts
- Founding year
- 1905
- Founder
- Hans Wilsdorf
- Headquarters
- Switzerland
- Tier
- Luxury
- Major collections
- Submariner, Daytona, GMT-Master II, Datejust, Day-Date, Yacht-Master, Sky-Dweller, Explorer, Oyster Perpetual, Sea-Dweller, Air-King, 1908, Milgauss
- Signature technologies
- Proprietary case-hardening and polishing · Composite and ceramic case materials
- Famous movements
- In-house automatic, chronometer certified · In-house automatic chronograph · In-house automatic, Superlative Chronometer · In-house manual-winding
- Notable watches
- Rolex Submariner 44 mm Skeletonised Platinum (1978) · Rolex Submariner 36 mm Ice 18k (1981) · Rolex Submariner 42 mm Meteorite Quartz (1982) · Rolex Submariner 38 mm Silvered 18k (1989)
Brand history
Rolex has spent more than 121 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Submariner, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Hans Wilsdorf established Rolex in 1905, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Rolex calibre produced today.
Historical milestones
1905
Hans Wilsdorf founds Rolex in Switzerland.
1969
The quartz era forces Rolex to redefine mechanical watchmaking.
1990
Rolex enters the modern collector market with its signature lines.
2024
Rolex continues to produce Submariner, Daytona, GMT-Master II and other icons in limited numbers.