Wristwatch · Jump-hour retrograde minute wristwatch

Gérald Genta Rétro Solo Ref. R.S.O.M.10

Partially verified

This Gérald Genta Rétro Solo, reference R.S.O.M.10, is a gentleman's wristwatch produced circa 2000. The watch features a tonneau-shaped, curved, stainless steel case measuring 31mm by 44mm with a thickness of 10mm. It is fitted with concave sides, a rounded bezel, and a case back secured by four screws. The crown is decorated with a dotted edge. The off-white dial displays a retrograde minutes sector with Arabic numerals and an aperture at the bottom for the jump-hour indication. A single blued steel épée hand indicates the minutes. The watch houses the self-winding Caliber 4503 movement, which comprises 27 jewels, a straight-line lever escapement, monometallic balance, and shock-absorber mechanism. The timepiece includes a stainless steel Gérald Genta buckle and is accompanied by a fitted box and certificate. The dial, case, and movement are signed by the maker.

Front view of the Gérald Genta Rétro Solo, showing the jump-hour aperture and retrograde minute scale. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source: catalog.antiquorum.swiss
Category: Wristwatch · Jump-hour retrograde minute wristwatch
Maker / attribution: Gérald Genta
Reference: R.S.O.M.10
Catalogue / lot identifier: 109-4
Source-reported date: circa 2000
Source-reported place: Not established

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 Construction

The timepiece is housed in a tonneau-shaped, curved stainless steel case. The construction of the three-body case includes concave sides, a rounded bezel, and a case back that is secured by four screws. The watch is specified as water-resistant, and the winding crown is detailed with a dotted edge. A sapphire crystal protects the dial.

The dial is finished in an off-white color. It features a retrograde minutes sector arranged in an arc, marked with Arabic numerals. The jump-hour mechanism is displayed through an aperture at the bottom of the dial. A single blued steel épée hand is used for the retrograde minute indication.

Evidence for this section

“tonneau-shaped and curved”
“Three-body, concave sides, rounded bezel, case back with 4 screws, winding crown edged with dots”
“Off-white with Arabic numerals for the retrograde minutes sector, at the bottom, aperture for the jump-hour”

Movement and Escapement

The movement powering the watch is the self-winding Caliber 4503. The movement is finished with rhodium plating and contains 27 jewels. The technical configuration includes a straight-line lever escapement, a monometallic balance, and a shock-absorber.

Regulation of the movement is managed by a self-compensating flat balance-spring. The movement is signed by the maker, as are the dial and the case.

Evidence for this section

“Cal. 4503, rhodiumplated, 27 jewels, straight line lever escapement”
“self-compensating flat balance-spring”
“Dial, case and movement signed.”

Condition and Accessories

The auction description reports the object is accompanied by a fitted box and certificate. The wristwatch is finished with a stainless steel Gérald Genta buckle.

According to the auction house grading system, the case is rated as grade 2 (very good), the movement as grade 1 (as new), and the dial as grade 1-01 (as new). The hands are noted as original.

Evidence for this section

“Accompanied by a fitted box and certificate”
“stainless steel Gérald Genta buckle”
“Case: 2 Very good Movement: 1 As new Dial: 1-01 As new HANDS Original”

Open research questions

What is the specific production volume of the R.S.O.M.10 reference?
Does the Caliber 4503 originate from an ebauche supplier or a proprietary Gérald Genta design?

Source evidence

Recorded claims and source quotations for Gérald Genta Rétro Solo Ref. R.S.O.M.10
Field	Source-reported value	Source quotation
Maker	Gérald Genta	“Gérald Genta”
Reference	R.S.O.M.10	“Ref. R.S.O.M.10”
Date	circa 2000	“Made circa 2000.”
Movement Caliber	4503	“Cal. 4503”
Case Dimensions	31mm x 44mm	“Dim. 31mm x 44mm.”
Jewels	27	“27 jewels”
Case Material	Stainless steel	“stainless steel gentleman's wristwatch”
Hand Style	Blued steel épée	“Blued steel "épée" hand.”

Visible details

Retrograde minute scale marked 0 to 60
Jump-hour aperture positioned at the bottom of the dial
Winding crown feature a dotted edge design
Tonneau-shaped case profile with curved sides

Research qualifications

No specific production country stated in source
Movement serial number is not provided in source text

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

Consulted source

"Rétro Solo" Gérald Genta, "Rétro Solo", Ref. R.S.O.M.10. Made circa 2000. Fine, tonneau-shaped and curved, jump-hour, self-winding, water-resistant, stainless steel gentleman's wristwatch with retrograde minutes and a stainless steel Gérald Genta buckle. Accompanied by a fitted box and certificate.

Reviewed 2026-10-26 · Record 7f6ef91ef6

Terms in this record

Glossary explanations for terms named in this object’s record.