





DeptMaster – Black Diver
Design your dream watch — Customization included
Watch Specifications
- Case: 316L stainless steel – Diver style
- Diameter: 41 mm
- Thickness: 13.5 mm
- Dial: Black MarineMaster – 28.5 mm
- Crystal: Sapphire, scratch-resistant with cyclops magnifier and anti-reflective coating
- Bezel: Unidirectional rotating with ceramic insert
- Case back: Steel
- Crown: Screw-down for improved water resistance
- Hands: Mercedes style – Luminova
- Bracelet: Oyster 904L stainless steel – 20 mm
- Wrist size: Adjustable 14.5–22 cm (tool included)
- Water resistance: 10 ATM (100 m / 330 ft)
- Weight: 140 g
Each Chrono Mod DeptMaster – Black Diver is hand-assembled and tested for precision, durability, and bold presence. Designed to endure, crafted to impress.
Japanese Movement – Seiko Automatic
Movement : Seiko NH35a Automatic Mechanical
Fonctions :
- Automatic winding
- Hacking seconds
Power Reserve: 41 hours on full charge
Jewels: 24
Shipping & Delivery Times
Free tracked delivery · Estimated: 8–12 days
Hand-assembled in 3–5 business days
Delivery times may vary by destination
30-day returns · 2-year warranty
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Materials
Premium Components
Crafted from 316L stainless steel, protected by a scratch-proof sapphire crystal, and finished with a high-gloss ceramic bezel.
Built for long-lasting durability, exceptional clarity, and a refined luxury feel.

Movement
Japanese Precision
Powered by a Seiko NH35 Automatic movement, tested and regulated for long-term accuracy.
Smooth, reliable and trusted by watch enthusiasts worldwide.

Durability
100 m Water Resistance
Engineered for everyday confidence thanks to a sealed case construction and screw-down crown.
Ready for rain, swimming and daily wear — up to 100 meters.

Luminova
Luminova C3 offers the brightest glow among modern luminous compounds, delivering a strong green illumination in low-light conditions. Highly durable and long-lasting, it ensures exceptional readability day and night.

Sapphire Glass
Sapphire glass provides exceptional scratch resistance and crystal-clear visibility. Highly durable and second only to diamond in hardness, it ensures long-term clarity and premium protection for your watch.

10 ATM
Designed for everyday confidence, 10 ATM water resistance protects your watch against rain, splashes, swimming, and shallow diving. Durable and reliable for active daily wear.

BRACELET

Easylock Clasp
The Easylock clasp system offers a precise and effortless adjustment thanks to its smart extension mechanism. Designed for quick micro-adjustments, it delivers optimal comfort and flexibility in any situation. Beyond its simple operation, Easylock reflects refined watchmaking craftsmanship — ensuring a secure fit, a smooth feel, and a perfectly balanced wearing experience throughout the day.

Bezel
Crafted in polished 316L stainless steel with a deep ceramic-style insert, this bezel delivers the iconic diver look — bold, precise, and timeless. Its unidirectional rotation ensures reliable timing, while the crisp engraved markers and luminous triangle offer instant legibility in any condition. A classic tool-watch bezel built for durability, clarity, and everyday performance.
Need help?
FREQUENTLY ASKED QUESTIONS
A Chrono mod is a one-of-a-kind timepiece, custom-made and impossible to find in traditional retail stores.
Handcrafted by experts, these watches combine original Seiko components with carefully selected non-Seiko parts, chosen for their quality and style.
Each watch undergoes a series of rigorous tests to ensure its performance and reliability:
- Water Resistance: A thorough check of the water resistance to ensure perfect sealing.
- Demagnetization: A demagnetization process to preserve the proper functioning of sensitive components.
- Chronometer Adjustment: Precise adjustment of the watch to achieve accuracy within -5 to +5 seconds per day.
These quality checks are carried out with care before shipping, ensuring you receive a watch that is ready to use, reliable, and high-performing.
For every order, we provide you with the necessary tool to adjust the bracelet to your wrist yourself.
This allows you to easily customize the fit at home, at no extra cost.






