Seestern S434-2.02 – The Sporty Dive Watch with Character
The Seestern S434-2.02 combines precise engineering, premium materials, and functional design in a harmoniously proportioned case. With its 39 mm diameter, it’s a reliable companion for everyday life, leisure, and adventure.
Durable 316L Stainless Steel Case
The finely brushed case is made from resilient 316L stainless steel – corrosion-resistant, robust, and comfortable to wear. The screw-down crown ensures optimal protection of the movement against moisture and dust.
Dimensions:
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Diameter: 39.0 mm
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Height: 10 mm (13 mm including crystal)
Box-Shaped Sapphire Crystal with Visual Depth
The prominently domed, box-shaped sapphire crystal protects the dial from scratches and creates an impressive visual depth typically found in higher-end timepieces.
High-Visibility Ceramic Bezel with BGW9 Lume
The unidirectional dive bezel is fitted with a ceramic insert and fully coated with BGW9 Super-LumiNova – ensuring optimal legibility day and night.
Reliable Automatic Movement by TMI
At its core ticks the proven NH35A caliber by TMI (a Seiko Group company). Known for its durability, accuracy, and low maintenance, it's an ideal choice for long-term everyday use.
Specifications:
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Automatic winding
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21 jewels
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21,600 vibrations per hour (3 Hz)
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41-hour power reserve
Solid Bracelet with On-the-Fly Adjustment
The robust stainless steel bracelet features a folding clasp with quick-adjustment functionality – easy to operate on the go, without the need for tools.
Water Resistant to 200 Meters – Built for Diving
With a water resistance of 20 ATM (200 meters), the Seestern S434-2.02 is not just splash-proof or swim-friendly – it’s a fully capable diver’s watch. Whether you're swimming, snorkeling, or exploring deeper underwater, this timepiece is engineered to handle the pressure with confidence and reliability.
Refined Evolution of the Original S434
Compared to its predecessor, the Seestern S434, the S434-2.02 introduces several refined upgrades. The signature domed sapphire crystal enhances its presence, while a larger crown improves grip and usability. The caseback has been redesigned to feature a high-quality engraving of The Great Wave off Kanagawa – a visual highlight that also reinforces durability.
Key improvements at a glance:
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More compact design: 39 mm vs. 40 mm – ideal for many wrist sizes
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Larger crown: easier to operate
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Upgraded caseback: features detailed engraving of The Great Wave
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Flatter profile: improved wearing comfort for everyday use
These subtle yet impactful upgrades make the S434-2.02 a more mature and well-rounded successor – functional, well-crafted, and thoughtfully designed.
Conclusion: A Watch with Substance
The Seestern S434-2.02 stands out through its well-balanced combination of engineering, performance, and craftsmanship – a dive watch without excess, but with a strong identity and a keen eye for detail. Perfect for anyone seeking a robust, characterful everyday timepiece.
Shipping
Shipping takes place from Germany. Free shipping inside of Germany. Every shipment usually takes place within 24 hours and is fully insured.
The following fees apply to all shipments within and outside the EU.
Right of withdrawal
You can easily return any item to us within 14 days of receipt (return shipping fee not included). However, the product must remain in its original, unused condition and in its original packaging.
For more information, see our returns policy .

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