bio-metal mask PREMIUM


bio-metal mask PREMIUM

Extraordinary glossy and deep color, a truly premium mask.

A special mask with luxurious surface treatment.
UV420 lens is installed as standard.

New color “Milky white”

New color, “Milky white” frame, painted with a pearl effect white paint, is newly added to the bio-metal mask premium series popular for its high quality finish.
By unifying all the frames, flanges and straps in white, it became a mask with a refreshing and noble dignity.

It employs the buffed glossy finish lens retainer to match the high quality of the “Milky White“ frame.

Attained extreme finish of aluminum frame.

Even with ordinary anodized finish, enough durability and decorativeness can be obtained. However, we built this mask with ultimate focus on surface finish as much as possible.

The mirror finished high grade frame in deep color employs an exclusive glossy finished lens retainer. The black flange models employ a deep black gloss lens retainer, while the clear flange models employ the thoroughly polished lens retainers that used with bio-metal mask pro.

UV420 lens Installed as a standard.

The multilayer coating on the surface of tempered lens cuts wavelengths of blue through ultraviolet region from approximately 420 nm.

It is widely known that light rays with ultraviolet rays of 380 nm or less are harmful for the eyes and the skin. However, recently it has become apparent that light rays in the wavelength range between 420 nm and 380 nm within the visible ray also cause deterioration and diseases of eyes, such as oxidative stress and reduction of lutein.

For that reason, cuts in this wavelength range is now recommended every where including spectacle lens manufacturers.

The surface reflection of peach color is added to the multilayer coating、for further enhancing the bio-metal stylish design. It does not spoil eye contact property underwater in diving since the reflection characteristics change underwater.
On the other hand, on land, it transforms your bio-metal mask to a more stylish and attractive mask in addition to the UV 420 cut.

Polished by craftsman in Japan.

Metal frame especially “Migaki (polished) by Craftsman’s hand.
Only one underwater mask taken over Craftsmanship in Japan.

BFFS (Bio Facial Fitting System)

You can select the frame with designs, colors, and for purposes. Furthermore to fit your face, you can select from 4 type and 2 colors of flanges.

This is a limitation service at the exclusive dealers.  Please ask our customer support or the distributors of your region.

Four Types of Flange Lineup.

As all of the divers can choose the best diving mask of your own, four types of flange with respective features has been line-up.

You can try all of the flange at a shop where the BFFS (bio-facial fitting system) fitting system is available.

You can arrange a one-of-a-kind diving mask of your own by choosing an optimum flange for your use, your preference and the fit, out of the four types of flange line-up ranging from the type-A, the smallest in inner volume, up to the latest type-D, then select the frame of your favorite color and your favorite lens.

Stick to the Lens.

Another feature of the bio-metal mask is wide lineup of the lens.
1-Standard lens made of the tempered glass.
2-Polarized lens laminated the high quality polarizing plate with an excellent polarizing property.
3-Highly durable bio-AR lens suppresses surface reflections to minimum by the multilayer coating.
4-Wide range of the off-the-shelf vision corrective lenses made of optical glass.

It is possible to choose a lens that suits you from this lens lineup.
Please refer to each lens listed in “Peripherals” for more information.


Frame color

Rose Pink, Ruby, Sky Blue, Metallic Brown, Milky White

Frame material

Aliminum alloy

Frame finish

Rose Pink, Ruby, Sky Blue, Metallic Brown … Polished + Anodized
Milky White … Pearl effect paint

Flange size

type-A, type-B, type-C, type-D

Flange and strap material

Silicone rubber

Flange and strap color

type-A, B, C: Black and Clear
type-D: Black and White


UV420 lens

Lens retainer material

SUS304, Buffed finishing




Rose Pink


Sky Blue

Metallic Brown

Milky White

CAUTION: The frame of the Milky White Mask is finished with a special multi-layered paint. Lens replacement requires dedicated jigs and trained personnel. Ask a distributor who can provide this service for the lens replacement.

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