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The Zr-4 Diver is a premium chronograph designed specifically to withstand the physical realities of deep water diving up to 30 atmospheres of pressure. The Zr-4 Diver has vintage '70s diver influences with its large, round shape [53mm], big bold luminescent painted numbers, custom silicone rubber strap, and rotating bezel with engraved indices. The bezel also features knurling n the outside edge marking 0 to 15 minutes. The Zr-4 Diver is finished with a hardened mineral crystal and surgical-grade 316L stainless steel, screw-down crown and pushers- all designed to increase its strength and durability. Available in Black/Silicone/30ATM.


  • Case: 53mm wide stainless steel, 316L surgical grade
  • Band: Silicone rubber
  • Buckle: Stainless steel
  • Crystal: Hardened mineral
  • Movement: 6-hand premium chronograph, made in Japan
  • Water resistance: 30 ATM/ 300 Meters
  • Wrist: Thick


  • Screw-down crown and pushers
  • Rotating bezel with markers
  • Crystal seated below bezel for protection
  • Luminous markers
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