BLS Factory Breitling Navitimer 1 GMT 41mm Automatic Watch
The BLS Factory Breitling Navitimer 1 GMT combines a 41mm case with a 2836 automatic mechanical movement and an additional GMT indication for displaying a second time-zone reference.
The watch is paired with a stainless steel bracelet and features a domed sapphire crystal with double-sided anti-reflective treatment.
Compared with chronograph-focused Navitimer configurations, this model places greater emphasis on its GMT second time-zone function, making the additional time reference one of the key technical characteristics of the watch.
41mm Case
The BLS Factory Breitling Navitimer 1 GMT features a 41mm case diameter.
This size provides sufficient dial area for the central time display and additional GMT indication while maintaining more restrained proportions than larger 43mm or 44mm configurations.
The 41mm diameter also works together with the steel bracelet to create a balanced sports-watch profile.
No confirmed case thickness or specific case material was supplied, so these specifications are not added.
2836 Automatic Movement
This configuration uses a 2836 automatic mechanical movement.
Automatic winding allows normal wrist movement to contribute to replenishing the movement’s stored energy during regular wear.
If the movement has stopped after remaining unworn, it can be manually wound before setting the time.
No specific power reserve, frequency or measured accuracy data was supplied, so these figures are not added.
GMT Second Time-Zone Display
A defining functional characteristic of this model is its GMT second time-zone indication.
The additional GMT hand allows another time reference to be displayed alongside the primary local time.
This can be useful when traveling between regions or when regularly keeping track of time in another country.
The exact independent-setting behavior of the GMT hand was not specified, so no unverified adjustment functionality is claimed.
Central Time Display
The primary time indication uses centrally mounted hands to provide the standard local-time reference.
The additional GMT indication operates visually alongside these primary hands, allowing the wearer to distinguish local time from the second time-zone reference.
This arrangement provides GMT functionality without requiring a separate second-time subdial.
Domed Sapphire Crystal
The dial is protected by a domed sapphire crystal.
Sapphire offers high resistance to everyday surface scratches while maintaining good optical transparency.
The curved profile also contributes to the watch’s side-view appearance rather than creating a completely flat upper surface.
Despite sapphire’s high surface hardness, concentrated impacts against hard objects should still be avoided.
Double-Sided Anti-Reflective Treatment
According to the supplied specification, the sapphire crystal incorporates double-sided anti-reflective treatment.
This treatment is intended to reduce unwanted reflections across the crystal and improve visibility of the dial and GMT indication under different lighting conditions.
Because the external anti-reflective surface is directly exposed during wear, abrasive polishing products should be avoided.
A clean microfiber cloth is suitable for routine crystal cleaning.
Stainless Steel Bracelet
The supplied configuration is paired with a stainless steel bracelet.
The metal bracelet provides a more substantial wrist feel than a leather or rubber strap and visually complements the instrument-oriented character of the Navitimer design.
The individual bracelet links allow the overall length to be adjusted according to wrist circumference.
Regular cleaning between the bracelet links can help prevent dust and residue from accumulating over time.
GMT Function for Travel
The additional time-zone display is particularly useful for users who regularly reference two different locations.
For example, the main hour hand can be used for local time while the GMT hand provides a second reference time.
This allows two time references to remain visible on the same dial without requiring a second watch or separate digital display.
The function is therefore mechanically simpler in presentation than a multi-register chronograph while adding practical information beyond a conventional three-hand watch.
Product Specifications
Item Specification
Factory BLS Factory
Brand Breitling
Collection Navitimer 1
Model GMT
Case Diameter 41mm
Movement 2836 Automatic
Winding Automatic
Function Time / GMT Second Time Zone
GMT Additional GMT Indication
Crystal Domed Sapphire Crystal
Anti-Reflective Treatment Double-Sided
Bracelet Stainless Steel
Style Automatic GMT / Aviation Watch
Movement and GMT Architecture
The 2836 automatic movement and GMT display form the primary technical configuration of this BLS Factory Navitimer 1.
Unlike a conventional automatic movement limited to local time, the additional GMT indication provides another time reference directly on the main dial.
This also distinguishes the model from the Navitimer B01 Chronograph configurations, where mechanical elapsed-time measurement and multiple chronograph registers are the primary functional focus.
Wearing and Care Advice
Protect the 2836 automatic movement from heavy impacts and strong magnetic fields.
When setting the time or GMT indication, operate the crown gently and avoid forcing the mechanism if unusual resistance is encountered.
Use a clean microfiber cloth for routine cleaning of the sapphire crystal and steel bracelet.
Avoid aggressive polishing compounds on the externally treated anti-reflective surface.
No confirmed water-resistance specification was supplied, so intentional water exposure is not recommended without appropriate pressure testing.
Frequently Asked Questions
What size is the BLS Factory Breitling Navitimer 1 GMT?
The supplied case diameter is 41mm.
What movement does this model use?
It uses a 2836 automatic mechanical movement.
Does this Navitimer have GMT functionality?
Yes. The supplied configuration includes a GMT indication for displaying a second time-zone reference.
What type of crystal does it use?
The watch features a domed sapphire crystal.
Does the sapphire crystal have anti-reflective treatment?
Yes. The supplied specification identifies double-sided anti-reflective treatment.
What type of bracelet is fitted?
This configuration is paired with a stainless steel bracelet.
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