Automatic watch movement Chronometer (*) ETA 2893-2 with GMT function – DOLPHIN Prototype (dolphin-watches.com/en/watches/gmt-mistral-cosc)
The movement is an ETA 2893-2 automatic movement signed DOLPHIN, individually numbered, with date at 12H00, central second, central GMT hand.
According to the Dolphin watchmaker web site “DOLPHIN WATCHES, based on its asymmetrical articulated case, has developed for the 58th Douai Artillery Regiment, a GMT automatic watch with a Swiss movement, with double time zones, so as to display « Zulu Time » and « Local Time », useful for launching Mistral missiles during OPEX.”
Measurements: 11.5”’, Diameter ca. 25.6 mm, height ca. 4.10 mm.
Balance frequency: 28,800 vibrations per hour (4 Hz).
Power reserve: ca. 42 hours.
Ball bearing rotor, 21 jewels.
Oscillating mass: Dolphin | TWENTY-ONE 21 JEWELS | SWISS MADE.
*- the CHRONOMETER denomination is used according to the manufacturer description of the watch which is powered by this movement – there is no COSC certificate provided with this item. Please see the last photo for clarification.
The article is sold “as is” – any other parts that are not mentioned in the description or shown in the photos are not included with this movement.
The movement is working but it was never tested for precision. As for any other vintage or used movement, a basic revision is recommended.
All the movements in our offers are service or replacement parts meant to be used by professionals for watch servicing. The movements are handled and stored in different boxes or containers, operations that may affect their accuracy. These movements are supposed to be cleaned, oiled, timed or adjusted by a professional before fully corresponding to the manufacturer specifications.