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M20 DSS [42mm] - Yellow
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M20 DSS - Deep Sea System
The M20 DSS is back, with thoughtful upgrades that make this proven adventure watch even more efficient and convenient to own.
A new, lighter handset reduces the power required to drive the hands, while a higher-capacity battery extends the expected interval between battery changes from approximately 3–4 years to 4–5 years. That means less frequent servicing, less hassle and a lower long-term cost of ownership.
Built to perform in demanding conditions, the M20 DSS combines 200M water resistance with a dependable Swiss-made Ronda 515 quartz movement. Its offset screw-down crown sits comfortably away from the wrist, helping prevent “wrist bite” during active use.
The double-dome sapphire crystal adds exceptional scratch resistance and a distinctive vintage-inspired bubble effect that complements the softly rounded case. When the light fades, generously applied Super-LumiNova® on the hands and dial markers provides excellent visibility.
Key Features
- Swiss-Made Ronda 515+ Quartz Movement: Accurate, dependable and easy to own
- Extended 4–5 Year Battery-Change Interval: Less frequent servicing and lower ownership costs
- Upgraded Lightweight Handset: Reduces power consumption for greater efficiency
- Offset Screw-Down Crown: Designed for all-day comfort without wrist bite
- Double-Dome Sapphire Crystal: Highly scratch-resistant with a distinctive vintage profile
- 200M / 660FT Water Resistance: Built for diving, travel and everyday adventure
- Super-LumiNova® Hands and Markers: Excellent visibility in low-light conditions
- Movement Swiss, Quartz, Ronda 515
- Dial Color Yellow
- Screw-down Crown
- Water Resistance 200 / 660
- SKU:
014AADAFB-AK-BAC-B-BI-BAMA-D-B
- Case Diameter 42mm
- Case Height 13mm
- Lug Width 22mm
- Lug-to-Lug 50mm
- Stainless Steel
- Sapphire Only
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Slim Case Design
While officially the M20 comes in at 42mm in diameter, the case shape makes the watch feel much smaller. Don't let its good looks deceive you: the M20 is durable and adventure-ready, with an off-set screw-down crown that won't bite your wrist and 200M-rating.


