The Basics

The 43.5 mm DTE is created in 18-carat red gold. The white dials (with Roman numerals in one and Arabic numerals in the other) are accented with blued hour and minute hands. The back of the watch features a transparent sapphire crystal for viewing the splendidly decorated nickel-silver movement. In all, this masterpiece of tradition and vision, of technology and elegance reinforces the watchmaking prowess of Arnold & Son, and elevates its accomplishments to all new heights. In typical Arnold & Son style, the watch is incredibly detailed and features superlative Haute Horlogerie finishing. The dial side of the timepiece offers symmetry and depth. It features two white lacquered domed dials – one each at 12 o’clock and 6 o’clock – for the dual time displays. The two tourbillon escapements are harmoniously balanced at 3 o’clock and 9 o’clock and seem to float over the dial thanks to their alluring raised 18-carat red gold bridges. The backdrop for these double lacquered dials and double tourbillon escapements is a magnificently decorated verticalCôtes de Genèvestripes plate. The two crowns – one each for setting the local and the home time – are located at 2 o’clock and 8 o’clock, and the two mainsprings are wound using the crown at 2 o’clock.

Brand: Arnold & Son
Family: Instrument Collection
Reference: 1DTAR.L01A.C120A
Name: DTE
Produced: N/A
Limited: Yes, 28 units

Below is a detailed look at Arnold & Son’s model 1DTAR.L01A.C120A from Instrument Collection watch family, including the price, case details and movement features.

Arnold & Son Instrument Collection 1DTAR.L01A.C120A

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The Details

Arnold & Son’s DTE (1DTAR.L01A.C120A) was originally released in N/A. This watch features a hand-wound movement beating at a frequency of 21600 bph ( 3 Hz) to provide a 90-hour power reserve when fully wound.

The Case

The rose gold case measures 43.5mm in diameter and roughly mm thick. The round case is paired with a white color dial with -shaped hands, and a roman numerals hour markers and minute track, covered by a sapphire glass. Arnold & Son’s Instrument Collection model 1DTAR.L01A.C120A is water resistant up to 30 meters (98 ft). A display caseback is over the back of the watch case.

Material: Rose Gold
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 43.5mm
Height: mm
Lug Width: N/Amm
W/R: 30

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Instrument Collection 1DTAR.L01A.C120A movement is a powered by caliber A&S8513 made by Arnold & Son. The 42-jewel hand-wound movement is 37.3mm in diameter. Its balance wheel oscillates at 21,600 semi-oscillations per hour or 3 Hz. This movement offers a 90-hour power reserve.

Type: Hand-Wound
Brand: Arnold & Son
Caliber: A&S8513
Base: N/A
Display: Analog
Diameter: 37.3mm
Jewels: 42
Reserve: 90 hours
Frequency: 21600 bph
Time: Hours, Minutes, Additional 12 Hour Hand (adjustable)
Additionals: Tourbillon Escapement

The Price

How much does the Arnold & Son’s Instrument Collection 1DTAR.L01A.C120A cost? This watch was introduced in N/A and has been in Arnold & Son’s collection for around . This watch is a limited edition with just 28 pieces released. As with most luxury watches, the price of depends on the availability and demand.

CURRENT PRICE: Not Available .

For more information, visit Arnold & Son online.


  • Brand: Arnold & Son
  • Model: DTE
  • Reference Number: 1DTAR.L01A.C120A
  • Limited: Yes, 28 units

Case & Dial:

  • Material: Rose Gold
  • Glass: Sapphire
  • Back: Display
  • Diameter: 43.5
  • Thickness:
  • Lug Width: N/A
  • Dial Color: White
  • Indexes: Roman Numerals and -shaped hands
  • Water Resistance: 30 meters


  • Winding: Hand-Wound
  • Brand: Arnold & Son
  • Caliber: A&S8513
  • Display: Analog
  • Diameter: 37.3mm
  • Jewels: 42
  • Power Reserve: 90 hours
  • Frequency: 21600 bph
  • Functions: Hours, Minutes, Additional 12 Hour Hand (adjustable)

About Arnold & Son

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Arnold & Son is part of the Citizen group.

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