The latest technology brings comfortable vision closer

Seiko Pursuit NV-X minimizes swim and distortion and makes vision more natural by incorporating the latest technology in Cross Surface Design® to control the sides of a lens. With the balanced design unique to Seiko, Pursuit NV-X is a beneficial set of lenses that brings comfortable vision closer to you.

Pursuit NV-X basic design <Cross Surface Design® (Double-sided Control Design)>

Cross Surface Design® (Double-sided Control Design) is the latest design that has pursued more natural and comfortable vision than ever before by controlling the shape of the back surface and front surface of the lenses with advanced technology.
You will be even less susceptible to feeling the sways that occur when you move your face because distortions on the lens side are reduced. Moreover, it is possible to get an even more natural vision closer to the real thing because near-distance magnification is increased for those with myopia and magnification is reduced for those with hyperopia.

Natural vision with few sways and distortions

It is possible to further reduce sways and distortions from lenses with the traditional back-surface progressive + back-surface aspheric design by adopting the Cross Surface Design®.

S+4.00 ADD2.00  Corridor length14mm
Photography of actual lenses.

The photograph is an image that shows differences in fields of vision

Near distance magnification improvement and near distance aspect ratio improvement

When viewing the near distance with lenses for those that have myopia

When everything looks smaller and collapsed, there is correction to a vision closer to the real thing.

When viewing the near distance with lenses for those that have hyperopia

When everything looks bigger and stretched out, there is correction to a vision closer to the real thing.

The photograph is an image that shows differences in fields of vision

near distance aspect ratio:The aspect ratio when viewing squares with the near distance portion of progressive lenses

Pursuit NV-X features

<Smart Surface Control>

Smart Surface Control

We have achieved an effect close to “horizontal atoric” and “magnification control” that was previously only found in our high-end progressive lenses with simple surface shapes.

Smart Surface Control

<Aspheric Adjustments according to Dioptric Power>

Aspheric Adjustments according to Dioptric Power

It is possible for customers with lenses of all powers to experience an even wider field of vision and a more comfortable fit without variations in the optical performance due to the lens power.

Previous lens

Previous lens

With ordinary progressive lenses, a common semi-finished blank(※) is used at each base curve division, resulting in differences in optical performance.

Semi-finished lens material with shaping on one side completed, leaving the other side to be processed when an order is placed.

Aspheric Adjustments according to Dioptric Power

Aspheric Adjustments according to Dioptric Power

Pursuit NV-X provides a wider field of vision and comfortable fit to customers needing all kinds of power with no difference in optical performance caused by power.

<Advanced aspheric design>

Advanced aspheric design

There is a significant improvement on the narrowness of the field of vision for those with astigmatism compared to traditional lenses by performing aberration correction in all 360° directions with consideration for “Listing’s Law” that determines the posture of the eyeball when turned toward one’s line of sight in various directions.

Lens appearance

Beautiful fit in small frames

  • Previous lens
  • Pursuit NV-X

The photograph is an image that shows features.

Pursuit NV-X is designed in detail by computer to match not only the eyesight of the user, but also factors such as lifestyle and frame shapes. Pursuit NV-X features short progressive corridors of 10mm, 12mm and 14mm, and this means that the lens can be neatly accommodated in shallow frames, an achievement difficult to realize with previous progressive lenses.

Thin, lightweight and comfortable to wear

  • Previous lens
  • 1.60 lens
  • 1.67 lens
  • 1.74 lens

This is an image of S-6.00. SEIKO's previous lens used 1.50 monomer.

The numerical value that indicates the ability of the lens material to refract light is called the "refractive index" and the higher this index, the thinner the lens. Pursuit NV-X features a lineup of 3 types of material: Ultra-high 1.74 refractive index material, high index 1.67 material and 1.60 index material. In addition, back surface aspheric design is used to achieve a thin lens. The synergy between material and design enables a lens that is thinner and lighter than previous lenses.

Thinness / coating

Product Name Thinness UV Cut off Reflection Resistance Contamination Resistance Scratch Resistance Anti-static coating Reducing blue light Blocking UV rays reflected from the back Fogging Resistance
Pursuit NV-X 1.74 ★★★★★ 標準 標準 標準 OP OP OP OP OP
Pursuit NV-X 1.67 ★★★★ 標準 標準 標準 OP OP OP OP OP
Pursuit NV-X 1.60 ★★★ 標準 標準 標準 OP OP OP OP OP

S:Standard specifications OP:Option


Product Name Refractive Index Specific Gravity Abbe Value Progressive Power Corridor (mm) Quality Assurance Mark
Pursuit NV-X 1.74 1.74 1.47 33 10 12 14
Pursuit NV-X 1.67 1.67 1.36 32 10 12 14
Pursuit NV-X 1.60 1.60 1.30 42 10 12 14