Arnold & Son Instrument DBG Equation GMT
Record status
Individual type · partial
Period
circa 2015
Maker / issuer
Arnold & SonThis Arnold & Son Instrument DBG Equation GMT wristwatch, reference 1DGAS.S01A.C121S, is a manual-winding stainless steel timepiece. Featuring a 44 mm diameter round case, it is equipped with the A&S 1209 caliber, which incorporates a double barrel and dual gear train system, each with its own escapement and balance.
The watch provides two separate time displays and includes a 24-hour GMT indication on a subsidiary dial positioned at 12 o'clock. The dial is light-grey and silver opaline with radial Roman and Arabic numerals. This example is a numbered edition, marked as No. 028, and is accompanied by an original fitted box, certificate of origin, and an instruction booklet. The watch is worn on a black crocodile leather strap with a stainless steel buckle.
The movement is adjusted to five positions and features a sapphire-crystal exhibition case-back secured by six screws.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Technical characteristics
- Type
- Two-time zone wristwatch
- Maker
- Arnold & Son
- Edition
- No. 028
- Reference
- 1DGAS.S01A.C121S
- Case Number
- 16.1.1.01
- Case Diameter
- 44 mm
- Case Material
- Stainless steel
- Place recorded
- Switzerland
- Movement Caliber
- A&S 1209
- Maker / attribution
- Arnold & Son
Design
- Visible features
- • Dual balances and escapements visible on the dial side • Light-grey and silver opaline dial with Roman and Arabic numerals • Exhibition case-back showing the movement bridge architecture • Black crocodile leather strap with Arnold & Son logo
- Movement Architecture
- The caliber A&S 1209 is a manual-winding movement featuring a double barrel and a double escapement configuration. This arrangement allows the two time displays to operate independently, preventing energy drain from one function from impacting the accuracy of the other. The movement is adjusted to five positions and possesses a 40-hour power reserve. The engineering is designed to allow the housing of distinct technical characteristics for separate complications within a single movement.
- Dial and Case Construction
- The watch features a 44 mm stainless steel round case with a water-resistant design. The exhibition back is secured by six screws, revealing the movement. The dial is executed in light-grey and silver opaline, incorporating a combination of radial Roman and Arabic numerals. The display architecture manages two distinct time zones, each powered by an independent gear train and barrel, with a subsidiary dial located at 12 o'clock providing a 24-hour indication for the GMT complication.
- Provenance and Documentation
- The watch is identified as part of a limited, numbered edition, specifically unit number 028. The object is provided with its original fitted box, a certificate of origin, and an instruction booklet. The auction description reports the watch as being in excellent condition, grading the case and dial as new. Authenticity and signature are confirmed on the dial, case, and movement.
Identification
- Reference
- 1DGAS.S01A.C121S
- Serial number
- 16.1.1.01
- Source note
- Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.
Research required
- Research required: The exact production year is provided as 'circa 2015'
- Research required: Condition is stated as 'As new' by the auction description