Updated
Orient Kamasu vs Orient Mako 40
Orient's two sapphire 200m divers
Quick Verdict
The Orient Kamasu and the Orient Mako 40 are both 200m automatic divers with sapphire crystals and 40-hour reserves in the $250–$500 band. The Kamasu is 41.8mm with a day-date and the F6922. The Mako 40 is 40mm with a date, a unidirectional bezel and the F6722, listed as hacking and hand-winding. They are close siblings; size and the day display decide it.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Orient Kamasu Automatic Diver | Orient Mako 40 Green |
|---|---|---|
| Price | $250–$500 | $250–$500 |
| Case Size | 41.8mm | 40mm |
| Movement | Automatic Caliber F6922 | Automatic Caliber F6722 |
| Caliber Type | Orient In-House Automatic | Orient In-House Automatic (Hacking, Hand-Winding) |
| Power Reserve | 40 Hours | 40 Hours |
| Water Resistance | 200m (20 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Close siblings
Both are Orient divers in steel with sapphire. The Kamasu shows the day and date; the Mako 40 shows the date only and has a sunburst dial on the green version listed here. Choose by dial and colour.
Movement & Performance
F6922 against F6722
The Kamasu runs the in-house F6922 with a day-date; the Mako 40 runs the in-house F6722 with a date, listed as hacking and hand-winding. Both have 22 jewels, run at 21,600 vph and have a 40-hour reserve.
Durability & Water Resistance
Identical: 200m and sapphire
Both are rated to 200m (20 ATM) with sapphire crystals.
Wearability & Fit
The Mako 40 is 1.8mm smaller
The Mako 40 is 40mm and the Kamasu is 41.8mm. The Mako is the better fit for smaller wrists.
Value & Cost of Ownership
Same band
Both sit in the $250–$500 band. Either is excellent value for a sapphire, 200m automatic.
Our Verdict
Orient
Kamasu Automatic Diver
Choose the Orient Kamasu if you want the day display and a slightly larger dial.
View the dossierOrient
Mako 40 Green
Choose the Orient Mako 40 if you want the smaller case and a cleaner date-only dial. At 40mm it is one of the most wearable divers at this price.
Check Price on AmazonThe Bottom Line
The Orient Kamasu and Orient Mako 40 are both 200m automatic dive watches with sapphire crystals and 40-hour reserves in the $250 to $500 band; the Kamasu is 41.8mm with a day-date, while the Mako 40 is 40mm with a date only.
Frequently Asked Questions
More Comparisons
Explore These Watches
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.