Dive confidently with this Seiko Mod Sub, crafted for those who appreciate precision, durability, and timeless dive-watch style. Built with premium materials and powered by Seiko’s trusted automatic movement, this model delivers rugged performance with everyday elegance.
✨ Key Features
Premium 904L Stainless Steel Case & Bracelet
Durable, corrosion-resistant, and finished to a high standard for a luxury-inspired look.
Reliable NH35 / NH36 Automatic Movement
Seiko’s proven automatic caliber featuring:
Smooth automatic operation
Hacking & hand-winding capability
~41-hour power reserve
Perfect for daily wear and long-term reliability.
Unidirectional Dive Bezel
120-click unidirectional bezel designed for safe and accurate elapsed-time tracking.
Sapphire Crystal
Scratch-resistant for long-lasting clarity and durability.
40mm Versatile Case Size
A balanced, classic profile that suits most wrist sizes comfortably.
📏 Specifications
Case Diameter: 40 mm
Thickness: ~12–13 mm
Lug Width: 20 mm
Case Material: 904L Stainless Steel
Bracelet Options: Jubilee or Oyster
Bezel Options:
Black dive bezel
Green or two-tone inserts (depending on build)
Crystal: Sapphire
Movement: NH35 / NH36 Automatic
Water Resistance: 10–20 ATM (build dependent)
Power Reserve: ~41 hours
⌚ Dial & Functionality
High-Legibility Dive Dial
Bold markers and hands with strong lume for excellent visibility in low-light conditions.
Date Window at 3 o’clock
Clean, practical, and ideal for everyday use.
Dive Bezel Functionality
The unidirectional bezel allows precise tracking of elapsed time for diving or daily timing needs.
🌟 Why Choose This Seiko Mod Sub?
This model combines Seiko’s dependable automatic movement with premium 904L stainless steel construction and iconic dive-watch design. Whether underwater or on the street, the Seiko Mod Sub offers durability, precision, and a refined presence on the wrist.
Dive confidently with this Seiko Mod Sub, crafted for those who appreciate precision, durability, and timeless dive-watch style. Built with premium materials and powered by Seiko’s trusted automatic movement, this model delivers rugged performance with everyday elegance.
✨ Key Features
Premium 904L Stainless Steel Case & Bracelet
Durable, corrosion-resistant, and finished to a high standard for a luxury-inspired look.
Reliable NH35 / NH36 Automatic Movement
Seiko’s proven automatic caliber featuring:
Smooth automatic operation
Hacking & hand-winding capability
~41-hour power reserve
Perfect for daily wear and long-term reliability.
Unidirectional Dive Bezel
120-click unidirectional bezel designed for safe and accurate elapsed-time tracking.
Sapphire Crystal
Scratch-resistant for long-lasting clarity and durability.
40mm Versatile Case Size
A balanced, classic profile that suits most wrist sizes comfortably.
📏 Specifications
Case Diameter: 40 mm
Thickness: ~12–13 mm
Lug Width: 20 mm
Case Material: 904L Stainless Steel
Bracelet Options: Jubilee or Oyster
Bezel Options:
Black dive bezel
Green or two-tone inserts (depending on build)
Crystal: Sapphire
Movement: NH35 / NH36 Automatic
Water Resistance: 10–20 ATM (build dependent)
Power Reserve: ~41 hours
⌚ Dial & Functionality
High-Legibility Dive Dial
Bold markers and hands with strong lume for excellent visibility in low-light conditions.
Date Window at 3 o’clock
Clean, practical, and ideal for everyday use.
Dive Bezel Functionality
The unidirectional bezel allows precise tracking of elapsed time for diving or daily timing needs.
🌟 Why Choose This Seiko Mod Sub?
This model combines Seiko’s dependable automatic movement with premium 904L stainless steel construction and iconic dive-watch design. Whether underwater or on the street, the Seiko Mod Sub offers durability, precision, and a refined presence on the wrist.
We carefully prepare every custom timepiece before shipping. Delivery estimates are displayed on the product page or at checkout.
An automatic watch is powered by a mechanical movement that winds itself through the natural motion of your wrist. It does not require a battery to operate.
When not worn, an automatic watch may eventually stop and require winding and time adjustment before use. Some ModSphere watches use quartz movements instead; refer to the product's movement specifications.
ENGINEERED FOR THE DETAILS
Explore the details behind your timepiece.
Crafted with sapphire crystal for exceptional scratch resistance and lasting clarity. Designed to withstand everyday wear while preserving the pristine appearance of your timepiece.
Powered by a Japanese automatic movement with a proven track record of reliability. Engineered for consistent performance, it combines trusted mechanical craftsmanship with the convenience of self-winding technology.
Crafted from premium 904L or 316L stainless steel, selected for strength, corrosion resistance, and lasting durability. Meticulously finished to deliver a refined appearance and a substantial feel on the wrist.
Carefully applied by hand to achieve an even, consistent glow in low-light conditions. Designed for lasting performance, keeping your watch legible when visibility matters most.
BLEND IN.
MADE TO STAND OUT.
