Mido Ocean Star GMT vs Rolex Datejust 41
Mido's diver meets Rolex's dress watch
Quick Verdict
The Mido Ocean Star GMT ($1,000–$1,500) offers Automatic (ETA C07.661 base) precision in the tier below the Rolex Datejust 41 ($5,000–$10,000). The Ocean Star GMT measures 44mm and is rated 200m (20 ATM). The Datejust 41 counters with Swiss Made craftsmanship and 100m (10 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Mido Ocean Star GMT | Rolex Datejust 41 |
|---|---|---|
| Price | $1,000–$1,500 | $5,000–$10,000 |
| Case Size | 44mm | 41mm |
| Movement | Automatic Caliber 80 (Base ETA C07.661) | Automatic Caliber 3235 |
| Caliber Type | Automatic (ETA C07.661 base) | Rolex In-House Automatic, Superlative Chronometer (-2/+2 sec/day) |
| Power Reserve | 80 Hours | 70 Hours |
| Water Resistance | 200m (20 ATM) | 100m (10 ATM) |
| Crystal | Sapphire with Double-sided AR | Sapphire Crystal with Cyclops |
| Case Material | Stainless Steel | Oystersteel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Mido's design language vs Rolex's approach
The Mido Ocean Star GMT features a Stainless Steel case at 44mm with Sapphire with Double-sided AR protection. The Rolex Datejust 41 offers Oystersteel construction at 41mm with Sapphire Crystal with Cyclops. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Caliber 80 (Base ETA C07.661) vs Automatic Caliber 3235
The Ocean Star GMT runs the Automatic Caliber 80 (Base ETA C07.661) (Automatic (ETA C07.661 base), 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Datejust 41 uses the Automatic Caliber 3235 (Rolex In-House Automatic, Superlative Chronometer (-2/+2 sec/day), 70 Hours reserve) at standard. The Ocean Star GMT edges ahead on power reserve.
Wearability & Fit
44mm vs 41mm — different wrist presence
At 44mm, the Ocean Star GMT has a bolder wrist presence compared to the Datejust 41 at 41mm. Water resistance differs: 200m (20 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Mido sits in the lower tier
The Mido Ocean Star GMT sits at $1,000–$1,500 and the Rolex Datejust 41 at $5,000–$10,000. On the specs that outlast any price: the Ocean Star GMT uses Sapphire with Double-sided AR with 80 Hours, against Sapphire Crystal with Cyclops and 70 Hours on the Datejust 41. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 100m (10 ATM)
The Ocean Star GMT is rated to 200m (20 ATM) while the Datejust 41 handles 100m (10 ATM). The Ocean Star GMT is better suited for water activities.
Our Verdict
Mido
Ocean Star GMT
Choose the Mido Ocean Star GMT if you prioritize Automatic (ETA C07.661 base) engineering, Swiss Made craftsmanship, and 200m (20 ATM) water resistance. At $1,000–$1,500, it delivers Automatic Caliber 80 (Base ETA C07.661) with 80 Hours power reserve.
Check Price on AmazonRolex
Datejust 41
Choose the Rolex Datejust 41 if you value Rolex In-House Automatic, Superlative Chronometer (-2/+2 sec/day) technology, Swiss Made heritage, and 41mm proportions. At $5,000–$10,000, the Automatic Caliber 3235 with 70 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Mido Ocean Star GMT and Rolex Datejust 41 represent two distinct approaches to fine watchmaking — the Mido bringing Swiss Made tradition while Rolex delivers Swiss Made engineering.
Frequently Asked Questions
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How This Page Was Made
Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.