This is a diver’s watch worthy of a fifty year anniversary. Its design echoes that of Seiko’s very first hibeat diver’s watch from the 1960’s, but its specifications are the most advanced in the field. It has a one-piece titanium case and, thanks to this, the L-shaped gasket and other features, it is impermeable to helium and suitable for saturation diving. The rotating bezel is securely fixed to the case with four screws next to the 12 and 6 o’clock positions. It has the new Lumibrite for enhanced legibility. The 8L55 movement is specially optimized and adapted for use in a diver’s watch with this structure. This caliber beats at 36,000 vibrations per hour and has a power reserve of 55 hours, and it is also assembled by Seiko’s leading craftsmen at the Shizuku-ishi Watch studio. Each watch comes with both a titanium bracelet with extender, and a black extra-strength silicone strap. Offered in a special presentation box, just 700 pieces will be made, each with its own serial number.

Marinemaster Professional 1,000m Diver’s Hi-Beat Limited Edition: SBEX001

• Caliber 8L55
  Driving system: Automatic with manual-winding mechanism
  Vibration: 36,000 vibrations per hour (10 beats per second)
  Power reserve: Approximately 55 hours
  Number of jewels: 37 jewels
• Case
  Titanium case with super-hard coating
  One-piece case structure (no-case-back construction)
  Sapphire crystal with anti-fogging coating
  Screw-down crown
  Water resistance 1,000m for saturation diving. Magnetic resistance 16,000 A/m
  Diameter: 48.2mm, Thickness: 19.7mm
• Band
  Titanium with super-hard coating, three-fold clasp with push button release with secure lock and slide adjuster
  A black extra-strength silicone strap is included.
• Approximate recommended retail price in Europe: Euro 6,400
• Limited Edition of 700 pcs