OPK 8156 Men's Quartz Watch, Rectangular, Stainless Steel, 3 ATM OPK 8156 Men's Quartz Watch
Reference number: 8156
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Technical Data
- Reference number
- 8156
- Watch type
- Quartz watch
- Case width
- 41 mm
- Case thickness
- 10.5 mm
- Strap width
- 18 mm
- Weight
- 91 g
- Strap material
- Stainless steel
- Crystal
- Hardened, coated watch glass
- Water resistance
- 3 ATM
About the Brand
OPK · MEN’S WATCH · REF. 8156
Timeless form. Confident function.
The OPK 8156 pairs quartz movement with a 41 mm case and wear-resistant stainless steel bracelet. Balanced proportions keep the dial and its functions at the centre.
Designed up close
in every detail.
The image sequence highlights the proportions, dial, strap and distinctive details of the OPK 8156. Calm surfaces and generous spacing draw attention to its form and legibility.




Technical specifications
Precisely
specified.
Dimensions, materials and functions are clearly organised. Both sizes are listed in full for matching-pair versions.
- Model
- 8156
- Movement
- Quartz movement
- Case diameter
- 41 mm
- Case thickness
- 10.5 mm
- Strap width
- 18 mm
- Weight
- 91 g
- Crystal
- High-strength coated crystal
- Strap material
- Wear-resistant stainless steel bracelet
- Water resistance
- 30 m – splash resistance for everyday use
Material.
Function.
Material, strap and water resistance are presented together so the key characteristics remain easy to review.
30 m – splash resistance for everyday use
The stated rating is intended for everyday contact with splashes; avoid prolonged immersion and water sports.
Crystal & strap
High-strength coated crystal · Wear-resistant stainless steel bracelet
Confirmed contents
- OPK box
- Bracelet sizing tool
- User manual
Functions
Questions about the OPK 8156
Which movement is confirmed?
Quartz movement.
Which dimensions are listed?
Case diameter 41 mm; case thickness 10.5 mm; strap width 18 mm.
How should the water-resistance rating be understood?
30 m – splash resistance for everyday use. The stated rating is intended for everyday contact with splashes; avoid prolonged immersion and water sports.
OPK · REF. 8156
Timeless form. Confident function.
In motion
See the watch in motion
Experiences
What owners say
Verified experiences make choosing easier. Positive and critical feedback is published under the same rules.
