ZF Factory Blancpain Fifty Fathoms 5008B 40.3mm Automatic Watch
The ZF Factory Blancpain Fifty Fathoms 5008B combines compact dive-watch proportions with a 40.3mm stainless steel case, curved sapphire crystal and sapphire bezel.
Often associated with the “Barakuda” design, this configuration uses a Dandong-based Cal.1151-style automatic mechanical movement and a natural rubber strap.
With dimensions of approximately 40.3mm × 13.23mm, the 5008B provides a more compact alternative to larger Fifty Fathoms configurations while retaining the characteristic rotating-bezel sports-watch architecture.
40.3mm Stainless Steel Case
The watch features a 316L stainless steel case measuring approximately 40.3mm in diameter and 13.23mm thick.
These dimensions give the 5008B relatively compact proportions for a mechanical dive-style watch.
The moderate diameter can also make the watch easier to accommodate on smaller and medium-sized wrists compared with larger 42–45mm sports watches.
Actual wrist presence will still depend on case geometry, lug shape and individual wrist circumference.
316L Stainless Steel Construction
The case is manufactured from 316L stainless steel, a material widely used in watch construction because of its durability and resistance to everyday corrosion.
Case finishing highlights the geometry of the exterior surfaces while maintaining the functional character of the Fifty Fathoms design.
Regular cleaning with a soft microfiber cloth can help remove fingerprints, sweat and surface residue.
Curved Sapphire Crystal
The dial is protected by a curved sapphire crystal.
The curved profile contributes to the watch’s overall proportions while creating different reflections when viewed from changing angles.
Sapphire provides high resistance to everyday scratches and excellent optical transparency.
Despite its surface hardness, direct impacts against hard objects should still be avoided.
Sapphire Bezel
A notable exterior feature of this 5008B configuration is its sapphire crystal bezel.
Unlike conventional aluminum or ceramic bezel constructions, the sapphire surface creates additional visual depth over the underlying bezel markings.
The combination of the curved sapphire crystal and sapphire bezel also gives the front of the watch a distinctive glass-like appearance.
Sapphire is highly scratch resistant but should still be protected from concentrated impacts.
Luminous Display
Luminous material is applied to the relevant dial and bezel indications to improve readability when ambient lighting decreases.
After exposure to an adequate light source, the luminous material stores energy and gradually releases it in darker environments.
Actual brightness and duration depend on the intensity and duration of the initial light exposure.
Because the specific luminous compound was not provided, no particular Super-LumiNova grade or formulation is assumed.
Dandong-Based Cal.1151-Style Movement
The watch uses a Dandong-based automatic mechanical movement configured with Cal.1151-style architecture and finishing.
This distinction is important when documenting the movement accurately.
The movement should not be interpreted as an original Blancpain Cal.1151. Instead, the underlying mechanical platform has been configured to reproduce aspects of the visual architecture associated with that caliber.
Automatic winding allows normal wrist movement to replenish the movement’s stored energy during regular use.
Mechanical accuracy can vary depending on regulation, power reserve, temperature, resting position and individual wearing habits.
Movement Bridge Architecture
The movement uses bridge construction and surface finishing designed around the Cal.1151-style visual layout.
This makes the movement architecture an important part of the overall technical presentation of the watch rather than treating it simply as an unseen mechanical component.
Specific technical details such as jewel count, frequency and power reserve have not been provided, so they are not assumed in this specification.
Natural Rubber Strap
The watch is paired with a natural rubber strap.
Rubber provides flexibility and resistance to everyday moisture while complementing the sports-oriented construction of the Fifty Fathoms.
Compared with leather, rubber is generally easier to maintain after exposure to sweat or water.
The strap can be rinsed with fresh water when necessary and dried thoroughly using a soft cloth.
Compact Dive-Watch Proportions
At approximately 40.3mm × 13.23mm, the 5008B occupies a different size category from many larger modern dive watches.
The smaller diameter reduces overall wrist coverage while the 13.23mm thickness maintains the more substantial profile expected from a mechanical sports watch.
For buyers comparing different Fifty Fathoms configurations, both diameter and thickness should be considered rather than evaluating case width alone.
Product Specifications
Item Specification
Factory ZF Factory
Collection Blancpain Fifty Fathoms
Model 5008B
Common Name Barakuda
Case Diameter 40.3mm
Case Thickness 13.23mm
Case Material 316L Stainless Steel
Movement Dandong-Based Automatic
Movement Configuration Cal.1151-Style
Front Crystal Curved Sapphire Crystal
Bezel Sapphire Crystal Bezel
Luminous Display Yes
Strap Natural Rubber
Water Resistance Not Specified
Clasp Not Specified
Style Automatic Dive-Style Watch
Wearing and Care Advice
Clean the 316L stainless steel case periodically with a soft microfiber cloth to remove fingerprints and surface residue.
Both the sapphire crystal and sapphire bezel provide strong scratch resistance, but concentrated impacts against hard surfaces should be avoided.
The natural rubber strap can be cleaned with fresh water and dried thoroughly after exposure to sweat or moisture.
Protect the automatic movement from heavy impacts and strong magnetic fields.
A specific water-resistance depth was not provided for this ZF Factory configuration. Professional pressure testing is therefore recommended before swimming or intentional water exposure.
Frequently Asked Questions
What size is the ZF Factory Fifty Fathoms 5008B?
The watch measures approximately 40.3mm in diameter and 13.23mm thick.
What movement does the ZF 5008B use?
It uses a Dandong-based automatic movement with Cal.1151-style architecture and finishing.
Is it an original Blancpain Cal.1151 movement?
No. The supplied information identifies a Dandong-based movement configured around a Cal.1151-style design rather than an original Blancpain caliber.
What material is the bezel?
This configuration features a sapphire crystal bezel.
What type of crystal protects the dial?
The watch uses a curved sapphire crystal.
What type of strap does the 5008B use?
This configuration is paired with a natural rubber strap.
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