The Seiko "Double Diamond" Edition is a premium custom-built timepiece that combines the legendary aesthetics of the Rolex Daytona with high-performance Japanese engineering.

Technical Specifications & Materials

This "Seiko Mod" is hand-assembled using a mix of genuine Seiko internal components and high-grade aftermarket exterior parts :

• Case Size & Material: The watch features a 40mm case crafted from 316L marine-grade stainless steel. This specific steel is chosen for its superior corrosion resistance and strength. For this edition, the case is finished with a thick 18K gold plating to provide a luxurious, heavy feel.
  
  
• The "Double Diamond" Bezel: A standout feature is the bespoke, high-polish bezel. It is meticulously set with two rows of brilliant-cut aftermarket crystals (simulated diamonds) that provide a high-end, reflective luster similar to factory-set precious gems.
  
  
• Movement (The Heart): It is powered by the Genuine Seiko VK63 Mecha-Quartz movement. This hybrid caliber offers the best of both worlds:
  • Quartz Precision: Perfect timekeeping accuracy with approximately 3 years of battery life.
  • Mechanical Feel: The center chronograph hand has a smooth sweeping motion (rather than a ticking one) and an instant fly-back reset when the bottom pusher is pressed.   
                                  
• Glass: The dial is protected by a scratch-resistant sapphire crystal. This material is second only to diamond in hardness, ensuring the watch face remains clear and free of scuffs over time. It also features an anti-reflective (AR) coating to reduce glare in bright light.
  
  
• Strap: The watch is fitted with a white High-Performance Fluorine Rubber (FKM) strap. Unlike standard silicone, FKM rubber is:
  • Dust-Resistant: It does not attract lint or debris.
  • Chemical & UV Resistant: It won't fade or crack from exposure to sunlight, saltwater, or sweat.
  • Durable: It maintains its shape and flexibility for many years
    
    Design & Functionality
    
    
  • The design follows the iconic "Daytona" silhouette, a staple in racing and luxury horology. The Arctic-white dial features diamond-style indices and three functional sub-dials.
    
    
  • 3 o’clock: 24-hour indicator (shows AM/PM).
  • 6 o’clock: Small running seconds hand.
  • 9 o’clock: 60-minute chronograph counter
    
    The finishing includes a distortion-free mirror polish on the lugs and case flanks, ensuring a premium, high-end reflection from every angle