Crafted for adrenaline junkies, the Heron finds its home where engines roar and tires shred the track. Use its chronograph function to time races and the tachymeter for speed calculations – so long as you know the distance.
The military-design dial of this men’s watch is protected by a double-domed sapphire crystal – almost as hard as diamond and very difficult to scratch. Easy to read at any hour thanks to its anti-reflective coating and glow-in-the-dark lume.
Encased in surgical steel and powered by an accurate Seiko chronograph movement.
Fastens with a flexible rubber strap, stretching to fit snugly around your wrist. Easy to clean – a little water and soap will restore its original charm.
- General↓
- Brand: Otsu
- Product ID: 27767
- Designed in: Denmark
- Product supplier contract:
- Warranty: 2 years
- Design & Materials↓
- Colors: Black
- Color shades: Army green, Chocolate brown, Light stone
- Materials: 316L stainless steel, Double-domed, Rubber, Sapphire glass
- Case materials: Stainless steel
- Strap materials: Rubber
- Nickel free: Yes
- Case colors: Black
- Bezel colors: Black
- Dial colors: Beige/Green
- Strap colors: Black
- Clockworks: Analog
- Battery: SR936SW
- Features↓
- Water resistance: 50m
- Features: Chronograph, Date, Tachymeter
- Measurement & Fit↓
- Dial size: 3.3cm
- Case diameter: 4cm
- Case thickness: 11mm
- Lug width: 24mm
- Lug to lug: 4.7cm
- Crown height: 3mm
- Strap width: 20mm
- Adjustable strap: Yes
- Wrist size range: 15.5-21cm
- Weight: 86g





















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