The Basics

The Eterna Madison Eight-Days is a tonneau-shaped wristwatch powered by an in-house movement with a power reserve of 8 days and a big date. Reference 7720.41.13.1229 has a stainless steel case (38.5 mm x 53.3 mm) and a silver dial. It is fitted with a brown Louisiana alligator strap.

Brand: Eterna
Family: Contemporary
Reference: 7720.41.13.1229
Name: Madison Eight-Days Silver
Produced: 2011
Limited: No

Below is a detailed look at Eterna’s model 7720.41.13.1229 from Contemporary watch family, including the price, case details and movement features.

Eterna Contemporary 7720.41.13.1229

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The Details

Eterna’s Madison Eight-Days Silver (7720.41.13.1229) was originally released in 2011. This watch features a hand-wound movement beating at a frequency of 28800 bph ( 4 Hz) to provide a 192-hour power reserve when fully wound.

The Case

The stainless steel case measures 38.5mm in diameter and roughly mm thick. The round case is paired with a silver color dial with dauphine-shaped hands, and a mixed hour markers and minute track, covered by a sapphire glass. Eterna’s Contemporary model 7720.41.13.1229 is water resistant up to 50 meters (164 ft). A display caseback is over the back of the watch case.

Material: Stainless steel
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 38.5mm
Height: mm
Lug Width: N/Amm
W/R: 50

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Contemporary 7720.41.13.1229 movement is a powered by caliber 3510 made by Eterna. The 22-jewel hand-wound movement is 30mm in diameter. Its balance wheel oscillates at 28,800 semi-oscillations per hour or 4 Hz. This movement offers a 192-hour power reserve.

Type: Hand-Wound
Brand: Eterna
Caliber: 3510
Base: N/A
Display: Analog
Diameter: 30mm
Jewels: 22
Reserve: 192 hours
Frequency: 28800 bph
Time: Hours, Minutes, Seconds

The Price

How much does the Eterna’s Contemporary 7720.41.13.1229 cost? This watch was introduced in 2011 and has been in Eterna’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.

CURRENT PRICE: Not Available

For more information, visit Eterna online.


  • Brand: Eterna
  • Model: Madison Eight-Days Silver
  • Reference Number: 7720.41.13.1229
  • Limited: No

Case & Dial:

  • Material: Stainless steel
  • Glass: Sapphire
  • Back: Display
  • Diameter: 38.5
  • Thickness:
  • Lug Width: N/A
  • Dial Color: Silver
  • Indexes: Mixed and Dauphine-shaped hands
  • Water Resistance: 50 meters


  • Winding: Hand-Wound
  • Brand: Eterna
  • Caliber: 3510
  • Display: Analog
  • Diameter: 30mm
  • Jewels: 22
  • Power Reserve: 192 hours
  • Frequency: 28800 bph
  • Functions: Hours, Minutes, Seconds

About Eterna

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Eterna is part of the China Haidian group.

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