Prospex HBF001J1 1968 Heritage Diver's Watch
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Description
A true flagship in the Prospex line, the Seiko Prospex HBF001J1 is built for serious diving, combining the iconic 1968 heritage design with modern engineering, featuring a robust 42.6mm stainless steel case, ceramic bezel, 300m water resistance, and a high-grade Caliber 8L45 automatic movement with a 72 hour power reserve for reliable performance in extreme conditions.
Movement
Caliber Number: 8L45
Movement Type: Automatic with manual winding
Precision: +10 to -5 seconds per day
Power Reserve: Approx. 72 hours(3 days)
Jewels: 35
Functions:
- 28,800 vibrations per hour (8 beats per second)
- Stop second hand function
- Date display
Case / Band
Case Material: Stainless steel (Bezel: Stainless steel with ceramic display)
Thickness: 14.1 mm
Diameter: 42.6 mm
Lug-to-lug: 49.3 mm
Crystal: Dual-curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
Clasp: Three-fold clasp＆push button release, solid & slide adjuster
Distance Between Lugs: 20mm
Other Details
Magnetic Resistance: 4,800 A/m
Features:
- Unidirectional rotating bezel
- Screw-down crown
- Screw case back
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