This is a detailed head-to-head comparison of the two timepieces, designed to help you decide which watch best suits your needs and style.
The comparison pits a robust, professional automatic dive watch against a slim, classic quartz military field watch. The choice fundamentally comes down to your preference for mechanical vs. quartz movement, and dive watch features vs. vintage military aesthetics.
Comparison Summary Table
Head-to-Head Comparison
Design & Aesthetics
| ADDIESDIVE NH35A 200m Diver Automatic Mechanical Watch Men Sport Luminous K1 Waterproof Wristwatch Swimming Self Winding Watch |
RDUNAE RA03 Retro Men's Watches Quartz Watch For Men G10 Military Army Homage Mineral Glass Stainless Steel 50M Retro Wristwatch |
| Purpose: Professional dive watch, often using a "Turtle-style" or classic Submariner-style case. |
Purpose: Vintage military field watch (G10 or Hamilton-style homage). |
| Look & Feel: Large, substantial, and rugged. Features a functional unidirectional bezel for dive timing, bold indices, and often a stainless steel bracelet. |
Look & Feel: Small, slim, minimalist, and very light. Features a simple matte black dial with clear Arabic numerals (often with 24-hour inner markings), on a simple nylon strap. |
| Size: A larger watch (typically $\approx 44 \text{mm}$) that demands wrist presence and is better suited for medium to large wrists. |
Size: A small, vintage-correct watch ($\mathbf{34.5 \text{mm}}$) that is highly comfortable and discreet, perfect for smaller wrists or those who prefer a classic, understated look. |
Performance, Durability, and Reliability
Movement (Engine)
- ADDIESDIVE (NH35A): This uses the tried-and-true Seiko NH35A automatic movement. It is a mechanical movement that is self-winding (no battery needed), features a 41-hour power reserve, and is both hackable (seconds hand stops when setting time) and hand-windable. The appeal is the traditional, smooth-sweeping seconds hand and the 'soul' of a mechanical watch, but it will be less accurate than the quartz alternative.
- RDUNAE (Miyota 2035): This uses a reliable Miyota 2035 quartz movement. Quartz movements are significantly more accurate and require virtually no maintenance beyond a battery change every few years. The seconds hand will tick once per second. The appeal is 'set it and forget it' accuracy and reliability.
Water Resistance & Crystal
- ADDIESDIVE: The 200m water resistance rating, paired with a screw-down crown and often a Synthetic Sapphire crystal, gives it superior water protection suitable for serious water sports, snorkeling, and recreational scuba diving. Sapphire is highly scratch-resistant.
- RDUNAE: The 50m water resistance rating is fine for splashes, rain, and possibly showering, but is not recommended for swimming or diving. The K1 mineral glass is more prone to scratching than Sapphire but is often more shatter-resistant and contributes to the vintage dome look.
Luminousity
- Both watches feature good luminous material (often BGW9 or C3 for the ADDIESDIVE, and Japan SuperLuminova for the RDUNAE) for visibility in low light. The ADDIESDIVE, as a dive watch, typically has larger markers and hands for superior night-time performance.
Pros & Cons
| Pros |
Cons |
| Mechanical Movement (NH35A): Self-winding and has the smooth sweep of a traditional watch. |
Less Accurate: Mechanical movements are inherently less accurate than quartz. |
| Superior Water Resistance (200m): Suitable for professional diving with a screw-down crown. |
Larger Size: At $\approx 44 \text{mm}$, it's a bulky watch that may not fit well on smaller wrists. |
| Sapphire Crystal: Excellent scratch resistance. |
Thicker: $\approx 13.5 \text{mm}$ case height makes it harder to fit under a shirt cuff. |
| Functional Dive Bezel: Useful for timing up to an hour. |
May have slightly lower quality control compared to the quartz-only option in the same price range. |
| Pros |
Cons |
| Highly Accurate (Quartz): Virtually perfect timekeeping and no need to wind. |
Lower Water Resistance (50m): Limits use to daily wear and light water exposure. |
| True Vintage Size (34.5mm): A very comfortable and historically accurate small diameter. |
Mineral Crystal: More susceptible to scratching than the ADDIESDIVE's sapphire crystal. |
| Extremely Thin & Light: Excellent for daily wear, highly discreet, and comfortable on the wrist. |
Ticking Seconds Hand: The classic quartz tick may be a drawback for some enthusiasts. |
| Authentic Field Watch Aesthetic: Excellent homage to classic military G10/Hamilton watches. |
Requires periodic battery changes. |
Conclusion: Who Should Buy What?
- You are an automatic watch enthusiast and prefer the feel and history of a mechanical movement.
- Your priority is maximum durability and water performance for swimming, diving, or outdoor activities.
- You have a medium-to-large wrist and prefer the substantial look and presence of a tool watch.
- You value a Sapphire crystal for superior scratch resistance.
- You prioritize pinpoint accuracy and low maintenance (set it and forget it) of a quartz movement.
- You prefer a small, discreet, and comfortable watch, especially if you have a smaller wrist.
- You are a fan of vintage military and field watch aesthetics (G10/Hamilton homage).
- Your watch is primarily for daily, dry-land wear where high water resistance is not essential.