From Heritus
Heritus Explorator II Built-to-order: 4 weeks turnaround Specifications Case Material : 316L Stainless Steel, corrosion-resistant for durability in harsh environments Case Size : 42mm – designed for a commanding wrist presence Case Thickness : 14mm – ensuring a robust profile without compromising wearability Crystal : Sapphire crystal with anti-reflective coating, scratch-resistant and optimized for visibility Dial : White black with luminescent indices and hands, ensuring clarity even in low-light conditions Lume : Super-LumiNova applied on hands, indices and bezel insert for exceptional visibility underwater Bezel : Stainless Steel bezel, and lumed with 24-hours markings for precise GMT time tracking Movement : Automatic NH34A movement, reliable and well-regarded for durability Water Resistance : 100 ATM – designed for professional diving standards Strap/Bracelet : Stainless steel bracelet or rubber strap, with secure clasp and micro-adjustments for a customized fit Case Back : Exhibition Screw-down case back Crown : Screw-down crown, ensuring secure water resistance
Specifications
Details and photos come from Heritus’s website, last checked Oct 26, 2026. Specs were read automatically and may contain mistakes.
Case
- Diameter
- 42 mm
- Lug-to-lug
- Not listed
- Thickness
- 14 mm
- Thickness incl. crystal
- Not listed
- Lug width
- Not listed
- Material
- 316L steel
Movement
- Type
- Automatic
- Caliber
- Seiko NH34
- Power reserve
- Not listed
- Functions
- Not listed
Crystal and bezel
- Crystal
- Sapphire
- Bezel
- Not listed
Water resistance
- Rated to
- 1000 m
Dial and lume
- Dial
- multi
- Lume
- Super-LumiNova applied on hands, indices and bezel insert for exceptional visibility underwater
Strap
- Strap
- bracelet
Every spec Heritus lists
- Dial
- White black with luminescent indices and hands, ensuring clarity even in low-light conditions
- Lume
- Super-LumiNova applied on hands, indices and bezel insert for exceptional visibility underwater
- Bezel
- Stainless Steel bezel, and lumed with 24-hours markings for precise GMT time tracking
- Crown
- Screw-down crown, ensuring secure water resistance
- Crystal
- Sapphire crystal with anti-reflective coating, scratch-resistant and optimized for visibility
- Movement
- Automatic NH34A movement, reliable and well-regarded for durability
- Case Back
- Exhibition Screw-down case back
- Case Size
- 42mm – designed for a commanding wrist presence
- Case Material
- 316L Stainless Steel, corrosion-resistant for durability in harsh environments
- Case Thickness
- 14mm – ensuring a robust profile without compromising wearability
- Strap/Bracelet
- Stainless steel bracelet or rubber strap, with secure clasp and micro-adjustments for a customized fit
- Water Resistance
- 100 ATM – designed for professional diving standards
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