Orient Mako 40 Green vs Seiko 5 Sports GMT SSK001
Orient's diver meets Seiko's GMT watch
Quick Verdict
The Orient Mako 40 Green (~$260) offers Orient In-House Automatic (Hacking, Hand-Winding) precision at $235 less than the Seiko 5 Sports GMT SSK001 (~$495). The 5 Sports GMT SSK001 counters with Made in Japan craftsmanship and 100m (10 ATM) water resistance. Both are exceptional watches for their respective price points.
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Specifications Compared
| Feature | Orient Mako 40 Green | Seiko 5 Sports GMT SSK001 |
|---|---|---|
| Price | ~$260 | ~$495 |
| Case Size | 40mm | 42.5mm |
| Movement | Automatic Caliber F6922 | Automatic Caliber 4R34 (True GMT) |
| Caliber Type | Orient In-House Automatic (Hacking, Hand-Winding) | Seiko In-House Automatic GMT |
| Power Reserve | 40 Hours | 41 Hours |
| Water Resistance | 200m (20 ATM) | 100m (10 ATM) |
| Crystal | Sapphire Crystal | Hardlex Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Orient's design language vs Seiko's approach
Movement & Performance
Automatic Caliber F6922 vs Automatic Caliber 4R34 (True GMT)
Wearability & Fit
40mm vs 42.5mm — different wrist presence
Value & Cost of Ownership
Orient is $235 more affordable
Water Resistance
200m (20 ATM) vs 100m (10 ATM)
Our Verdict
Orient
Mako 40 Green
Choose the Orient Mako 40 Green if you prioritize Orient In-House Automatic (Hacking, Hand-Winding) engineering, Made in Japan craftsmanship, and 200m (20 ATM) water resistance. At ~$260, it delivers Automatic Caliber F6922 with 40 Hours power reserve.
Check Price on AmazonSeiko
5 Sports GMT SSK001
Choose the Seiko 5 Sports GMT SSK001 if you value Seiko In-House Automatic GMT technology, Made in Japan heritage, and 42.5mm proportions. At ~$495, the Automatic Caliber 4R34 (True GMT) with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Orient Mako 40 Green and Seiko 5 Sports GMT SSK001 represent two distinct approaches to fine watchmaking — the Orient bringing Made in Japan tradition while Seiko delivers Made in Japan engineering.