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Last checked Oct 26, 2026
View on OLTO-8’s site ↗From OLTO-8
[#info] Brand Name: OLTO-8 Water Resistance: 300 Meter waterproof Movement: Seiko NH36 Strap Length: 120mm*80mm Strap Width: 22 mm Buckle Width: 20 mm Clasp Type: Pin Buckle Case Shape: Square Lens: Sapphire Crystal Glass Model Number: Coral Steward Case Material: 316 L STAINLESS STEEL Case back: See-through case back in stainless steel Case Size: 45 mm*45 mm Case Thickness: 13.00 mm Strap : Silicone strap Energy Storage: 42 hours Weight: 110g/127.5g(With Strap) [/info] [#advantages] Description Feature Drawing inspiration from vintage diving camera and helmet, Coral Steward boasts a distinctive square case design. Through circular dial, Coral Steward provides a captivating window into the underwater world of coral reefs. The intricately layered coral reef motif on the dial, showcased through a sapphire window, presents a historical accumulation of time and aesthetics. Time and beauty converge flawlessly in Coral Steward, where every detail speaks to the essence of exploration and craftsmanship. [/advantages] [#design] [/design] [#warranty] Warranty TWO YEARS INTERNATIONAL WARRANTY Your watch is internationally warranted by OLTO-8 for two years from the date of purchase on all models with any material or workmanship defects. This warranty does not cover: Straps, glass or batteries. Internal or external damage resulting from excessive wear, improper use or mishandling. Damage resulting from service provided from an unauthorized service center. [/warranty] [#feedback] [/feedback]
Specifications
Details and photos come from OLTO-8’s website, last checked Oct 26, 2026. Specs were read automatically and may contain mistakes.
Case
- Diameter
- 45 mm
- Lug-to-lug
- Not listed
- Thickness
- 13 mm
- Thickness incl. crystal
- Not listed
- Lug width
- 22 mm
- Material
- 316L steel
Movement
- Type
- Not listed
- Caliber
- NH36
- Power reserve
- Not listed
- Functions
- Not listed
Crystal and bezel
- Crystal
- Sapphire
- Bezel
- Not listed
Water resistance
- Rated to
- Not listed
Dial and lume
- Dial
- Not listed
- Lume
- Not listed
Strap
- Strap
- other
Every spec OLTO-8 lists
- Brand Name
- OLTO-8
- Water Resistance
- 300 Meter Waterproof
- Movement
- Tmi NH36
- Strap Length
- 120mm*80mm
- Strap Width
- 22 mm
- Buckle Width
- 20 mm
- Clasp Type
- Pin Buckle
- Case Shape
- Square
- Lens
- Sapphire Crystal Glass
- Model Number
- Coral Steward
- Case Material
- 316L STAINLESS STEEL
- Case back
- See-through case back in stainless steel
- Case Size
- 45mm * 45mm
- Case Thickness
- 13mm
- Strap
- Silicone strap
- Energy Storage
- 42 hours
- Weight
- 110g
- This warranty does not cover
- Straps, glass or batteries.
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