Steinhart Ocean One Vintage GMT vs Mido Ocean Star Captain IV: ETA 2893-2 against ETA 2836-2
Same diameter, two Swiss automatic ETA calibres and two different functions: a second time zone on the Steinhart, day and date on the Mido. We compare them using each piece’s details.
Two ETA calibres, two functions
The Steinhart Ocean One Vintage GMT runs on the ETA 2893-2: 21 jewels, 28,800 vibrations per hour and approximately 42 hours of power reserve. It shows hours, minutes, central seconds, date and a second time zone: the 24-hour GMT hand is set independently via the crown and read against the fixed 24-hour bezel.
The Mido Ocean Star Captain IV, reference M011.430.11.051.02, uses the ETA 2836-2: 25 jewels, 28,800 vibrations per hour and approximately 40 hours of power reserve. It displays day and date together at 3 o’clock, and the movement is visible through the exhibition case back, with its Mido-signed rotor.
Case, bezel and crown
Both measure approximately 42.5 mm without the crown and have a sapphire crystal and a screw-down crown. The Steinhart measures about 47.2 mm lug to lug and has a fixed brushed-steel bezel with a 24-hour scale; its original water-resistance rating is 300 m.
The Mido reaches 46.3 mm with the crown and is 11.5 mm thick. Its black diving bezel is unidirectional with a luminous pip, and the crown is Mido-signed. Its original water-resistance rating is 200 m and the lug width is 22 mm.
Dial
The Steinhart has a matte black dial with aged-tone luminous markers, a date at 3 o’clock and the orange arrow GMT hand.
The Mido has a black dial with a raised wave pattern in the centre, applied luminous markers, luminous hands and a red central seconds hand.
Documentation, condition and strap
The Steinhart dates from July 2015 and comes with its presentation box, a warranty booklet stamped and signed that month, the movement manual, a return-policy card and a hang tag. It is in very good condition; it is fitted to a NATO strap with wear to the fabric, and the original steel bracelet is not included.
The Mido was sold new on 6 January 2018. The serial number engraved on the case matches the one on the warranty card, which is retailer-stamped with that date, and it comes with its presentation box, documentation and original bracelet with spare links. It is in very good condition, with fine hairlines concentrated on the clasp.
Service history is unknown for both, and the original water resistance should not be assumed without a pressure test. Photos and prices are on the Steinhart Ocean One Vintage GMT and Mido Ocean Star Captain IV pages.
