Heimdallr 1KM Tuna:
- Case Material: 316L Stainless Steel
- Case Back: 316L Stainless Steel
- Bezel: Unidirect rotatable bezel (360 degrees)
- Bezel Insert: Steel Insert
- Crystal: Sapphire glass with AR-Coating
- Movement: Hangzhou 2565A Automatic Movement
- Strap: Diver Silicone Strap, engraved buckle
- Water resistance: 1'000 m / 100 ATM
- Luminous: Japanese SuperLume C3 (Green)
- Dial: Black
- Height: 16.0 mm
- Diameter: 48.0 mm
- Lug Size: 22 mm
- Crown: Screw-Down, sterile no engravement
Hangzhou 2565A Movement:
The accuracy of caliber Hangzhou 2565A is between +45 / -35 seconds per day. This rating is based on normal daily wear on the wrist in temperatures between 5 ºC and 35 ºC. When testing your watch for timekeeping, make sure it is fully wound.