The Basics

The Royal KonTiki is a modern sports watch loosely inspired by Eterna’s famous dive watches of yesteryear. It features a sporty case with a distinct 5-pointed bezel, which hints to the company’s logo. The Chronograph was introduced in late 2015 – compared to the earlier Chronograph GMT it is slightly downsized and somewhat more restraint in terms of design Reference 7755.40.50.0280 has a stainless steel case and matching bracelet. The dial is grey.

Brand: Eterna
Family: Adventure
Reference: 7755.40.50.0280
Name: Royal KonTiki Chronograph Bracelet
Produced: 2014
Limited: No

Below is a detailed look at Eterna’s model 7755.40.50.0280 from Adventure watch family, including the price, case details and movement features.

Eterna Adventure 7755.40.50.0280

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The Details

Eterna’s Royal KonTiki Chronograph Bracelet (7755.40.50.0280) was originally released in 2014. This watch features a automatic movement beating at a frequency of 28800 bph ( 4 Hz) to provide a 65-hour power reserve when fully wound.

The Case

The stainless steel case measures 42.25mm in diameter and roughly mm thick. The round case is paired with a grey color dial with stick-shaped hands, and a stick / dot hour markers and minute track, covered by a sapphire glass. Eterna’s Adventure model 7755.40.50.0280 is water resistant up to 100 meters (328 ft). A display caseback is over the back of the watch case.

Material: Stainless steel
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 42.25mm
Height: mm
Lug Width: N/Amm
W/R: 100

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Adventure 7755.40.50.0280 movement is a powered by caliber 3916A made by Eterna. The 35-jewel automatic movement is 30mm in diameter. Its balance wheel oscillates at 28,800 semi-oscillations per hour or 4 Hz. This movement offers a 65-hour power reserve.

Type: Automatic
Brand: Eterna
Caliber: 3916A
Base: N/A
Display: Analog
Diameter: 30mm
Jewels: 35
Reserve: 65 hours
Frequency: 28800 bph
Time: Hours, Minutes, Small Seconds
Chronograph: Chronograph, Column wheel, Flyback

The Price

How much does the Eterna’s Adventure 7755.40.50.0280 cost? This watch was introduced in 2014 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: Royal KonTiki Chronograph Bracelet
  • Reference Number: 7755.40.50.0280
  • Limited: No

Case & Dial:

  • Material: Stainless steel
  • Glass: Sapphire
  • Back: Display
  • Diameter: 42.25
  • Thickness:
  • Lug Width: N/A
  • Dial Color: Grey
  • Indexes: Stick / Dot and Stick-shaped hands
  • Water Resistance: 100 meters


  • Winding: Automatic
  • Brand: Eterna
  • Caliber: 3916A
  • Display: Analog
  • Diameter: 30mm
  • Jewels: 35
  • Power Reserve: 65 hours
  • Frequency: 28800 bph
  • Functions: Hours, Minutes, Small Seconds

About Eterna

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Eterna is part of the China Haidian group.

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