Variants

Technical specifications

Reference
C034.455.11.040.00
Warranty
2-year warranty
Weight net
143.00g
Color
Blue
Material
Super-LumiNova
SLN is the acronym for Super-LumiNova®, a phosphorescent luminescent material. The BG W9 type of SLN, used by Certina, emits the stored light in the form of a bluish glow in the dark. SLN poses no risk to health and is used to coat hands, indices and bezels. Its brightness decreases in the dark after some time, but it is automatically recharged when light strikes it.
Type
Quartz
Model
F06.421
Features
GMT - 2nd time zone
GMT watches also give wearers the opportunity to display another time zone, which can be set as they wish, in addition to the "main time". This information is usually provided by means of a separate hand on a 24-hour scale, making it possible to read the local time and home time at a glance when you are on the move, for instance.
Quartz
PrecidriveTM
The name of an innovative technology which ensures the utmost accuracy at Certina: The timepieces with Precidrive(TM) quartz calibres achieve real chronometer precision. With a rate deviation of +/-10 seconds per year, a Precidrive(TM) timepiece is around eight to ten times more accurate than traditional quartz timepieces.
End of life
Some Certina quartz timepieces - and all Precidrive(TM) models without exception, whether a three-hand variant or a chronograph - have an end of life (EOL) indicator. It indicates that the battery has reached the end of its life: When this is the case, the seconds hand continues to move, but in four-second increments only, and the battery should be replaced within the next two weeks.
Time-zone mechanism
The time zone mechanism enables modern cosmopolitans to adjust the time on their watch to a new time zone in an instant - without losing even a single second: When the crown is pulled to the first position, the hour hand can be set in one hour increments on models with a time zone mechanism, without interrupting the minutes and seconds.
ETA
Swiss Made
Material
316L stainless steel
The 316L stainless steel, which Certina uses for cases, bracelets and clasps for instance, is extremely resistant, corrosion-resistant and hygienic. It contains only a very small proportion of nickel, which is not emitted when worn and therefore does not trigger any nickel allergies.
Buckle material
316L stainless steel
The 316L stainless steel, which Certina uses for cases, bracelets and clasps for instance, is extremely resistant, corrosion-resistant and hygienic. It contains only a very small proportion of nickel, which is not emitted when worn and therefore does not trigger any nickel allergies.
Reference
C034.455.11.040.00
Warranty
2-year warranty
Weight net
143.00g
Case material
316L stainless steel
The 316L stainless steel, which Certina uses for cases, bracelets and clasps for instance, is extremely resistant, corrosion-resistant and hygienic. It contains only a very small proportion of nickel, which is not emitted when worn and therefore does not trigger any nickel allergies.
Bezel material
316L stainless steel
The 316L stainless steel, which Certina uses for cases, bracelets and clasps for instance, is extremely resistant, corrosion-resistant and hygienic. It contains only a very small proportion of nickel, which is not emitted when worn and therefore does not trigger any nickel allergies.
Glass
Sapphire crystal
Sapphire watch crystal is made of aluminium oxide power (Al2O3) heated to over 2000 °C. The resultant sapphire nugget is cut with great precision into fine slices, trimmed and polished. Sapphire is extremely scratch-resistant, shock-resistant and is very transparent. This is why sapphire crystal is an essential element in the DS Concept and is therefore used by Certina in all of its models to protect the dials.
Water resistance
Up to a pressure of 10 bar (100 m)
This information about the water resistance states the specified overpressure and diving depth to which a watch can be subjected and still remain in working order. As a general rule, we do not recommend wearing watches that are water-resistant to less than 10 bar (100 m) when swimming or diving. All Certina timepieces can withstand a pressure of at least 10 bar (100 m) stand - some of our watches can even withstand considerably higher pressures!
Diameter
41.00mm
Height
10.40mm
Between lugs
20.00mm
Color
Blue
Material
Super-LumiNova
SLN is the acronym for Super-LumiNova®, a phosphorescent luminescent material. The BG W9 type of SLN, used by Certina, emits the stored light in the form of a bluish glow in the dark. SLN poses no risk to health and is used to coat hands, indices and bezels. Its brightness decreases in the dark after some time, but it is automatically recharged when light strikes it.
Type
Quartz
Model
F06.421
Features
GMT - 2nd time zone
GMT watches also give wearers the opportunity to display another time zone, which can be set as they wish, in addition to the "main time". This information is usually provided by means of a separate hand on a 24-hour scale, making it possible to read the local time and home time at a glance when you are on the move, for instance.
Quartz
PrecidriveTM
The name of an innovative technology which ensures the utmost accuracy at Certina: The timepieces with Precidrive(TM) quartz calibres achieve real chronometer precision. With a rate deviation of +/-10 seconds per year, a Precidrive(TM) timepiece is around eight to ten times more accurate than traditional quartz timepieces.
End of life
Some Certina quartz timepieces - and all Precidrive(TM) models without exception, whether a three-hand variant or a chronograph - have an end of life (EOL) indicator. It indicates that the battery has reached the end of its life: When this is the case, the seconds hand continues to move, but in four-second increments only, and the battery should be replaced within the next two weeks.
Time-zone mechanism
The time zone mechanism enables modern cosmopolitans to adjust the time on their watch to a new time zone in an instant - without losing even a single second: When the crown is pulled to the first position, the hour hand can be set in one hour increments on models with a time zone mechanism, without interrupting the minutes and seconds.
ETA
Swiss Made
Material
316L stainless steel
The 316L stainless steel, which Certina uses for cases, bracelets and clasps for instance, is extremely resistant, corrosion-resistant and hygienic. It contains only a very small proportion of nickel, which is not emitted when worn and therefore does not trigger any nickel allergies.
Buckle material
316L stainless steel
The 316L stainless steel, which Certina uses for cases, bracelets and clasps for instance, is extremely resistant, corrosion-resistant and hygienic. It contains only a very small proportion of nickel, which is not emitted when worn and therefore does not trigger any nickel allergies.
Product sheet
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Materials

Stainless steel

The 316L stainless steel which Certina uses for cases, bracelets and clasps, for instance, is extremely resistant, corrosion-resistant and hypoallergenic. It contains only a very small proportion of nickel, which is not released when worn and therefore does not trigger any nickel allergies.

stainless steel

Super-LumiNova®

Super-LumiNova® (SLN) is a luminescent material with phosphorescent properties. In the dark, the SLN type BG W9 used by Certina emits the light stored as a blue shimmer. SLN does not damage your health in any way and is used in coatings on hands, indices and bezels. It progressively loses its phosphorescence in darkness, but automatically regains it under light.

super-luminova

Sapphire crystal

Sapphire watch crystal is made of aluminium oxide power (Al2O3) heated to over 2000°C. The resultant sapphire nugget is cut with great precision into fine slices, trimmed and polished. Sapphire is extremely scratch-resistant, shock-resistant and is very transparent. This is why sapphire crystal is an essential element in the DS Concept and is used by Certina in all of its models to protect the dials.

sapphire crystal

Stainless steel

The 316L stainless steel which Certina uses for cases, bracelets and clasps, for instance, is extremely resistant, corrosion-resistant and hypoallergenic. It contains only a very small proportion of nickel, which is not released when worn and therefore does not trigger any nickel allergies.

stainless steel

Super-LumiNova®

Super-LumiNova® (SLN) is a luminescent material with phosphorescent properties. In the dark, the SLN type BG W9 used by Certina emits the light stored as a blue shimmer. SLN does not damage your health in any way and is used in coatings on hands, indices and bezels. It progressively loses its phosphorescence in darkness, but automatically regains it under light.

super-luminova

Sapphire crystal

Sapphire watch crystal is made of aluminium oxide power (Al2O3) heated to over 2000°C. The resultant sapphire nugget is cut with great precision into fine slices, trimmed and polished. Sapphire is extremely scratch-resistant, shock-resistant and is very transparent. This is why sapphire crystal is an essential element in the DS Concept and is used by Certina in all of its models to protect the dials.

sapphire crystal

Features

GMT

This model features a function to effortlessly set a second time zone – perfect for those who want to know the time on the other side of the globe. The 24-hour display can be operated independently of the standard minute and hour hand, and can be read easily at a glance.

GMT

GMT

This model features a function to effortlessly set a second time zone – perfect for those who want to know the time on the other side of the globe. The 24-hour display can be operated independently of the standard minute and hour hand, and can be read easily at a glance.

GMT