Wristwatch · Split-seconds flyback chronograph wristwatch

A. Lange & Söhne Double Split Flyback Ref. 404.047F

Partially verified

This A. Lange & Söhne Double Split Flyback wristwatch, reference 404.047F with case number 163'803, was produced circa 2005 as part of an edition limited to 10 pieces for Singaporean retailer Sincere Watch Company. The 43 mm circular case is crafted in 18k pink gold and houses an all-black dial featuring matching black subsidiary registers, applied Roman and baton indexes, and an up/down power reserve indicator beneath 12 o'clock. Christie's reports it is powered by the hand-wound caliber L001.1, featuring a flyback double rattrapante chronograph mechanism.

Front view of the A. Lange & Söhne Double Split Flyback Ref. 404.047F in 18k pink gold with black dial — Christie's. Rights pending — permission not yet requested. Original source

Catalogue identity

Source: www.christies.com
Category: Wristwatch · Split-seconds flyback chronograph wristwatch
Maker / attribution: A. Lange & Söhne
Reference: 404.047F
Catalogue / lot identifier: 55
Source-reported date: circa 2005
Country: Germany
Source-reported serial: 163'803

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

Identity and Edition Background

This A. Lange & Söhne Double Split Flyback wristwatch bears reference 404.047F and case number 163'803, with production catalogued as circa 2005. According to Christie's, the model was executed as part of an edition strictly limited to 10 pieces produced exclusively for the Singaporean retailer Sincere Watch Company.

The lot description notes that this execution was preceded in 2004 by another special edition for Sincere's 50th anniversary (reference 404.036 in platinum), which also featured an all-black dial. The auction house notes that the present timepiece was consigned by a private collector.

Evidence for this section

“REF. 404.047F, CASE NO. 163'803, CIRCA 2005”
“Remark : Limited edition of 10 pieces”
“produced exclusively for the Singaporean retailer Sincere Watch Company.”

Case and Dial Construction

The timepiece features a circular 18k pink gold case catalogued at 43 mm in diameter. Visible inspection confirms chronograph pushers situated at 2, 4, and 10 o'clock alongside a fluted winding crown at 3 o'clock, with the case mounted on a grey textured strap.

The dial displays an all-black finish with matching black subsidiary registers positioned at 4 and 8 o'clock, which the source notes differs from regular production models with contrasting white subdials. Central superimposed split-seconds chronograph hands operate over applied Roman markers at XII and VI, accompanied by an up/down power reserve indicator below 12 o'clock and an outer tachymeter scale.

Evidence for this section

“Case : 43 mm. diam.”
“Circular 18k pink gold case with chronograph pushers at 2, 4, and 10 o'clock and a fluted winding crown at 3 o'clock.”
“Black dial with tachymeter scale, Roman numeral markers at XII and VI, dual matching black subsidiary dials at 4 and 8 o'clock, and an up/down indicator at 12 o'clock.”
“striking all-black dial with black subsidiary registers instead of the contrasting white subdials that are found on regular models.”

Reported Movement and Documented Accessories

The watch is reported by the auction catalogue to be powered by the manual-wind caliber L001.1, featuring 465 hand-finished parts, an operating frequency of 21,600 vibrations per hour, a 38-hour power reserve, and the manufacture's first in-house balance spring. However, the movement and case back are not visible in the provided primary image, so these internal details remain unverified by direct observation.

Accompanying items listed by the source include an 18k pink gold A. Lange & Söhne deployant clasp and a Proof of Origin document; neither accessory is depicted in the primary photograph.

Evidence for this section

“Powering the watch is the hand-wound caliber L001.1, featuring 465 hand-finished parts and beating at a frequency of 21'600 vibrations per hour. It offers a power reserve of 38 hours”
“With : 18k pink gold A. Lange & Söhne deployant clasp and Proof of Origin”

Open research questions

Does the case back or the Proof of Origin document specify an individual edition number out of the 10-piece run?
What specific sale date or delivery date is listed on the accompanying Proof of Origin?
Does the movement exhibit any dedicated retailer engraving or special markings distinct from standard caliber L001.1 production?

Source evidence

Recorded claims and source quotations for A. Lange & Söhne Double Split Flyback Ref. 404.047F
Field	Source-reported value	Source quotation
Reference	404.047F	“REF. 404.047F”
Case Number	163'803	“CASE NO. 163'803”
Case Diameter	43 mm	“Case : 43 mm. diam.”
Movement	Hand-wound caliber L001.1	“Powering the watch is the hand-wound caliber L001.1”
Limitation	Limited edition of 10 pieces	“Remark : Limited edition of 10 pieces”
Retailer Association	Sincere Watch Company	“MADE FOR THE SINCERE WATCH COMPANY”
Reported Power Reserve	38 hours	“It offers a power reserve of 38 hours”
Reported Movement Component Count	465 parts	“featuring 465 hand-finished parts”

Visible details

Circular 18k pink gold case with chronograph pushers at 2, 4, and 10 o'clock and a fluted winding crown at 3 o'clock.
Black dial with tachymeter scale, Roman numeral markers at XII and VI, dual matching black subsidiary dials at 4 and 8 o'clock, and an up/down indicator at 12 o'clock.
Central superimposed split-seconds chronograph hands with luminous main hour and minute hands.
Fitted with a grey textured strap.

Research qualifications

Movement and case back are not visible in the provided primary image.
Source-reported accessories, including the 18k pink gold deployant clasp and Proof of Origin, are not depicted.

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

Consulted source

A. LANGE & SÖHNE. AN IMPRESSIVE 18K PINK GOLD LIMITED EDITION DOUBLE SPLIT SECONDS FLYBACK CHRONOGRAPH WRISTWATCH WITH POWER RESERVE INDICATION, MADE FOR THE SINCERE WATCH COMPANY, DOUBLE SPLIT FLYBACK MODEL, REF. 404.047F, CASE NO. 163'803, CIRCA 2005 | Christie's

Reviewed 2026-10-21 · Record e9962426f3

Terms in this record

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