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The Encyclopedia of Horology

Wristwatch · Tourbillon perpetual calendar wristwatch

Daniel Roth Masters Tourbillon 8-Day with Perpetual Calendar

Partially verified

This Daniel Roth Masters series wristwatch features a manual-winding movement with a one-minute tourbillon regulator and an 8-day power reserve. The case, measuring 49 x 40 mm, is constructed in platinum and follows a signature vertical double-ellipse shape. It is a double-faced, hunting-case design incorporating a hinged case-back and a sapphire-crystal case-back. The timepiece is equipped with seven horological complications, including an instantaneous perpetual calendar with apertures for the day, month, and leap-year cycle, along with subsidiary dials for the date and leap-year. The moon phase is displayed via an aperture at 12 o'clock, complemented by an 8-day power-reserve indicator. The watch is powered by the caliber DR 5 301, adjusted to heat, cold, isochronism, and 6 positions. It is fitted with a black leather strap and an 18K white gold deployant clasp.

Front view of the Daniel Roth Masters Tourbillon, showing the dial, tourbillon cage, and power reserve, referencing the Ref. 220.Y.70.
Front view of the Daniel Roth Masters Tourbillon, showing the dial, tourbillon cage, and power reserve, referencing the Ref. 220.Y.70. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Tourbillon perpetual calendar wristwatch
Maker / attribution
Daniel Roth
Reference
220.Y.70
Catalogue / lot identifier
70
Source-reported date
circa 2000-2010
Source-reported place
Switzerland

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial

The watch is housed in a platinum case with a vertical double-ellipse geometry, measuring 49 x 40 mm. This double-faced, hunting-case model includes a hinged back and a sapphire-crystal case-back to view the movement. The front face features an eccentric dial with skeletonized elements and a subsidiary seconds indication integrated into the one-minute tourbillon regulator positioned at 6 o'clock.

The display includes multiple apertures and subsidiary dials. On the front, an 8-day power-reserve indication is located at the 12 o'clock position. The rear face is configured for the perpetual calendar, providing a moon phase aperture, apertures for the day of the week and month of the year, and subsidiary dials for the date and the leap-year cycle.

Indications on the calendar are presented in English. The case is classified as being in very good condition with slight scratches, while the dial is reported as new.

Evidence for this section
  • “Platinum, double-faced hunting-case”
  • “vertical double-ellipse-shaped”
  • “one-minute tourbillon regulator”
  • “Date of the month (subsidiary dial at 6 o'clock)”

Movement and Performance

The watch is powered by the caliber DR 5 301. It is a manual-winding movement featuring two twin going barrels. The mechanical construction incorporates a one-minute tourbillon regulator, intended to enhance timekeeping performance. The caliber is adjusted to heat, cold, isochronism, and six positions to manage accuracy.

The mechanism provides an 8-day power-reserve, indicated by an aperture on the front dial face.

Evidence for this section
  • “manual-winding, vertical double-ellipse-shaped, skeleton, 8-day going gentleman's wristwatch”
  • “Caliber DR 5 301, with two twin going barrels, adjusted to heat, cold isochronism and 6 positions”
  • “Overhaul recommended, at buyer's expense”

Signatures and Configuration

The watch is identified by the Daniel Roth signature on the dial, case, and movement. The watch is part of a special edition limited to 15 pieces. It is secured to the wrist with a black leather strap attached to an 18K white gold Daniel Roth deployant clasp.

The perpetual calendar is described as instantaneous and provides information through various apertures and subsidiary indicators. The watch is water-resistant, though specific depth ratings are not provided in the source documentation.

Evidence for this section
  • “Signature dial, case and movement”
  • “SPECIAL EDITION.. 15”
  • “black leather strap, with 18K white gold Daniel Roth deployant clasp”

Open research questions

  • What is the specific production number for this watch out of the 15 units of the special edition?
  • Does the movement caliber contain any proprietary materials beyond standard platinum or steel components?

Source evidence

Recorded claims and source quotations for Daniel Roth Masters Tourbillon 8-Day with Perpetual Calendar
FieldSource-reported valueSource quotation
MakerDaniel Roth“DANIEL ROTH”
Reference220.Y.70“Ref. 220 .Y. 70”
Case materialPlatinum“Platinum, double-faced hunting-case”
CaliberDR 5 301“Caliber DR 5 301”
ComplicationsSeven including tourbillon, perpetual calendar, and moon phase“seven horological complications”
Datecirca 2000-2010“circa 2000-2010”
Case dimensions49 x 40 mm“49 x 40 mm”

Visible details

  • Case features a hinged cover and vertical double-ellipse architecture
  • Tourbillon cage visible at 6 o'clock on the front dial
  • Perpetual calendar indications include English text for days and months
  • Dial side displays a power reserve indicator at 12 o'clock

Research qualifications

  • Movement overhaul recommended by auction description
  • Exact manufacturing date range is estimated as circa 2000-2010

Photograph identity and source facts were screened before import; rights clearance remains pending.