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The Mido Ocean Star Tribute Gradient and Ocean Star 20th Anniversary Inspired by Architecture are distinct automatic dive watches with stated 200 m water resistance and up to 80 hours of power reserve. The Tribute Gradient is the smaller, 40.5 mm option; the anniversary edition measures 42.5 mm and was limited to 1,841 pieces. A reliable model-specific review of the Ocean Star GMT is not possible without its exact reference, so the comparison below keeps that distinction clear.
At a glance: the two identifiable references
| Model | Case | Movement and functions | Water resistance | Edition and design |
|---|---|---|---|---|
| Ocean Star Tribute Gradient, M026.830.17.081.00 | 40.5 mm diameter; 13.4 mm average thickness; 316L stainless steel | Automatic; up to 80 hours’ stated power reserve; day/date | 20 bar / 200 m, per Mido | Grey-gradient dial, sapphire crystal and rubber strap; Tribute line draws on the look of 1960s dive models |
| Ocean Star 20th Anniversary Inspired by Architecture, M026.430.17.041.01 | 42.5 mm diameter; 11.6 mm thick, per WatchTime | Caliber 80; up to 80 hours’ stated reserve; weekday/date | 200 m, per WatchTime | Limited to 1,841 pieces; blue dial and details reference Europa Point Lighthouse |
| Ocean Star GMT | Not established for the intended reference | Not established for the intended reference | Not established for the intended reference | The 2021 Mido catalogue excerpt confirms a GMT section, but does not identify the reference or its specifications |
The Tribute figures and features are from Mido’s US product page. The anniversary edition’s core specifications and design description are reported by WatchTime on June 7, 2022; further construction and strap details are described in this detailed model account.
What the Tribute Gradient offers
A compact case with a modern dive-watch look
The reference M026.830.17.081.00 pairs a 40.5 mm 316L stainless-steel case with a grey-gradient dial and rubber strap. Mido lists the case at 13.4 mm average thickness and 21 mm between the lugs. A sapphire crystal, screw-down crown and day/date display complete the published specification.
Mido describes the Tribute family as a reinterpretation of design cues from its 1960s dive watches. That makes the Gradient’s vintage reference a design intention, not evidence that it reproduces the dimensions or construction of a particular historical model.
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- Swiss Made Watch
- Movement: The MIDO Caliber 80 represents a major advance in self-winding movements. Thanks to its new-generation technology, it offers up to 80 hours of power reserve
- Case Type: Stainless steel - Capable of withstanding pressures of up to 20 bar (200 m/660 ft), and equipped with a screw-down crown
- Case Size: 40.5mm - Case Thickness: 13.4mm - Black Dial with Day,Date Calendar - Black Bezel - Crystal: Sapphire crystal
- Band Type: 11-Link Stainless Steel Bracelet with folding clasp and diving extension - Extra Black Fabric included - Band Width: 21mm
Movement, reserve and water rating
Mido specifies an automatic movement with up to 80 hours of power reserve and a water-resistance rating of 20 bar (200 m). These are published specifications, not independently measured timing results or a report of dive testing. The available product information does not establish accuracy, bezel feel, lume performance, clasp quality or on-wrist comfort.
Price and stock are market snapshots
When Mido’s US product page was accessed in 2026, it displayed a price of $1,120 and marked the model out of stock. Treat that as a dated US-market listing, not a current worldwide price or a promise about availability. Check the exact reference and local seller before buying.
Rank #2
- Swiss Made Watch
- Movement: The MIDO Caliber 80 represents a major advance in self-winding movements. Thanks to its new-generation technology, it offers up to 80 hours of power reserve
- Case Type: Stainless steel - Capable of withstanding pressures of up to 20 bar (200 m/660 ft), and equipped with a screw-down crown
- Case Size: 40.5mm - Case Thickness: 13.4mm - Blue Dial with Date Calendar - Blue Bezel - Crystal: Sapphire crystal
- Band Type: Stainless Steel Bracelet with folding clasp and diving extension - Extra Blue Rubber Strap included - Band Width: 21mm
What makes the 20th Anniversary edition different
Europa Point Lighthouse is part of the design
The reference M026.430.17.041.01 commemorates the Europa Point Lighthouse through several details: its 12 o’clock index takes inspiration from the lighthouse, which is also engraved on the caseback. The edition count—1,841 watches—corresponds to the year the lighthouse was built, according to the detailed model account.
WatchTime describes an ocean-blue dial with a velvet finish, a coordinated unidirectional aluminum bezel, luminous markers and hands, and a textile strap with red accents. The detailed model account specifies a blue fabric strap with red stitching, a sapphire crystal with anti-reflective treatment on both sides, and a screwed caseback and crown. These are source descriptions rather than hands-on observations.
Rank #3
- Swiss Made Watch
- Movement: Automatic Mido Caliber - Power reserve 80 hours
- Case Type: Stainless steel - Capable of withstanding pressures of up to 20 bar (200 m/660 ft), and equipped with a screw-down crown
- Case Size: 40.5mm - Case Thickness: 13.4mm - Red Gradient Dial with Day,Date Calendar - Black Bezel - Crystal: Sapphire crystal
- Band Type: Black Rubber Strap with Pin Buckle closure - Band Width: 21mm
Case size, movement and calendar
WatchTime reports a 42.5 mm case, 11.6 mm thickness, Caliber 80 with up to 80 hours of power reserve, and 200 m water resistance. The watch has a weekday/date display at 3 o’clock. Its case is 2 mm wider than the Tribute Gradient’s, while the reported thickness is 1.8 mm less than the Tribute’s Mido-listed average. Those figures come from different published sources and should not be treated as measurements taken under one shared method.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why the GMT needs its reference before comparison
Mido’s 2021 catalogue search-result excerpt confirms an Ocean Star GMT section, but the available information does not identify the exact reference or its specifications. “GMT” in a model name alone does not establish the watch’s case dimensions, movement, water rating, price, or how its time-zone display works. Until the reference is confirmed, any model-by-model verdict would risk describing the wrong watch.
Rank #4
- Swiss Made Watch
- Movement: The MIDO Caliber 80 represents a major advance in self-winding movements. Thanks to its new-generation technology, it offers up to 80 hours of power reserve
- Case Type: Stainless steel with rose gold PVD coating - Capable of withstanding pressures of up to 20 bar (200 m/660 ft), and equipped with a screw-down crown
- Case Size: 40.5mm - Case Thickness: 13.4mm - Black Dial with Day,Date Calendar - Black Bezel with Rose Gold PVD Coating - Crystal: Sapphire crystal
- Band Type: 11-Link Stainless Steel Bracelet with folding clasp and diving extension - Band Width: 21mm
For a useful comparison, match the full reference number on the watch or listing to Mido’s official product information. Then verify the regional version: Ocean Star names cover variants, and specifications or availability should not be transferred from one reference to another.
Which identifiable Ocean Star fits the brief?
- Choose the Tribute Gradient for the smaller stated diameter: its 40.5 mm case, grey-gradient dial and rubber strap distinguish it from the larger anniversary model.
- Consider the anniversary edition for its specific design story: the 42.5 mm case, blue lighthouse-inspired details and 1,841-piece limited run are its defining characteristics.
- Do not choose between either one and the GMT on specification claims yet: first confirm which Ocean Star GMT reference is under consideration.
Neither published specification set answers subjective review questions such as fit, finishing in person, timekeeping on a particular example, or how the bezel and lume perform. Those require direct inspection or documented testing.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
