OCTA Factory IWC Portuguese Chronograph IW371446 41mm Steel Leather Strap Arabic Numerals Silver Dial

OCTA Factory IWC Portugieser Chronograph – Cal. 69355 Integrated Movement

The OCTA Factory IWC Portugieser Chronograph combines the traditional design of the Portugieser collection with an integrated Cal. 69355-style automatic chronograph movement.

Its defining characteristics include a symmetrical two-register dial, slim Arabic numeral hour markers, leaf-shaped hands, a narrow polished bezel, and a case measuring approximately 13mm in thickness.

The movement incorporates a column-wheel chronograph control system, operates at 28,800 vibrations per hour, and has a stated power reserve of 46 hours.

Case Architecture and Exterior Finishing

The Portugieser Chronograph is distinguished by its rounded case profile and restrained exterior design.

OCTA uses a model-specific case construction with smooth transitions between the case middle, bezel, and curved lugs.

The case sides combine brushed and polished surface treatments, creating a contrast between the different exterior components.

A narrow polished bezel surrounds the dial, allowing the watch face to occupy a large proportion of the visible case surface.

The curved lugs extend naturally from the case and influence how the watch sits against the wrist.

With a stated thickness of approximately 13mm, the case accommodates the automatic chronograph movement while retaining the characteristic proportions of the Portugieser design.

Symmetrical Two-Register Dial Layout

The dial is one of the most recognizable elements of the Portugieser Chronograph.

Its symmetrical arrangement places the 30-minute chronograph counter at 3 o’clock and the running small-seconds display at 9 o’clock.

This layout creates a clear separation between the chronograph function and the continuous time display.

A railway-style minute track runs around the outer edge of the dial, providing a detailed reference for reading minutes and seconds.

The elongated Arabic numeral markers and leaf-shaped hands contribute to the model’s traditional appearance.

The dial design is available in silver-toned and blue configurations, each offering a different contrast between the background, hands, and hour markers.

Integrated Cal. 69355-Style Automatic Chronograph

The OCTA Portugieser Chronograph uses a Dandong Cal. 69355-style integrated automatic chronograph movement.

The movement follows the general architecture associated with the IWC Cal. 69355, incorporating its chronograph mechanism within the main movement construction.

The integrated design brings the timekeeping and chronograph components together within a single movement architecture.

This arrangement is an important distinction when comparing the Cal. 69355-style movement with chronograph constructions based on other movement families.

Column-Wheel Chronograph Control

The chronograph mechanism uses a column-wheel control system to coordinate its start, stop, and reset functions.

The column wheel interacts with the chronograph operating levers to control the engagement and disengagement of the timing mechanism.

This differs from the cam-operated chronograph control commonly associated with the Valjoux 7750 architecture.

The movement’s chronograph construction is a significant technical characteristic of the OCTA Portugieser configuration, particularly when examining the mechanism through movement photographs and functional testing.

Movement Frequency and Power Reserve

The Cal. 69355-style movement operates at a frequency of 28,800 vibrations per hour (4Hz).

Its stated power reserve is approximately 46 hours.

The movement also incorporates a hacking-seconds function, allowing the running seconds to stop during time adjustment.

These characteristics provide useful technical reference points when evaluating the movement’s operating behavior.

Technical Specifications

Specification Details
Factory OCTA Factory
Collection IWC Portugieser Chronograph
Movement Manufacturer Dandong
Movement Integrated Cal. 69355-Style Automatic Chronograph
Chronograph Control Column Wheel
Movement Frequency 28,800 vph / 4Hz
Power Reserve Approx. 46 Hours
Hacking Seconds Yes
Chronograph Counter 30-Minute Counter at 3 O’Clock
Running Seconds Small Seconds at 9 O’Clock
Case Thickness Approx. 13mm
Case Finishing Brushed and Polished Surfaces
Bezel Narrow Polished Bezel
Dial Layout Symmetrical Two-Register
Hour Markers Arabic Numerals
Hands Leaf-Shaped
Minute Track Railway-Style
Dial Configurations Silver-Toned / Blue

Wearing Characteristics and Design Balance

The Portugieser Chronograph combines the appearance of a traditional dress watch with the mechanical complexity of an automatic chronograph.

Its narrow bezel, open dial layout, and elongated hour markers create a clear and balanced presentation.

The curved lugs contribute to the case’s wearing profile, while the two-register arrangement keeps the chronograph displays visually organized.

The OCTA configuration places particular emphasis on maintaining this exterior design alongside the integrated chronograph movement.

Frequently Asked Questions

What movement does the OCTA Portugieser Chronograph use?

It uses a Dandong Cal. 69355-style integrated automatic chronograph movement.

Does the movement use a column wheel?

Yes. The chronograph mechanism incorporates a column-wheel control system.

What is the movement frequency?

The movement operates at 28,800 vibrations per hour, equivalent to 4Hz.

What is the power reserve?

The stated power reserve is approximately 46 hours.

What are the two subdials used for?

The subdial at 3 o’clock displays the 30-minute chronograph counter, while the subdial at 9 o’clock displays the running small seconds.

How thick is the case?

The stated case thickness is approximately 13mm.

Please identify the merchant when purchasing to prevent buying counterfeit OCTA Factory products.

Welcome to Clean Factory Watch .We are dedicated to providing you with high-quality 1:1 replica watches that offer exceptional value at reasonable prices. Each watch is carefully photographed in real life to ensure an accurate description, allowing you to confidently choose a style that suits your taste and make an informed purchasing decision.

Please note that the listed prices do not include a watch box. If needed, it can be purchased separately. Perfectionists are advised to consider carefully before placing an order. If you have any specific requirements, feel free to contact our customer service — we’re here to help.

We place great importance on customer satisfaction and the overall shopping experience. If there are any quality issues with your purchased watch, please refer to our return and exchange policy and reach out to us. We will do our best to resolve the issue and ensure you are happy with both our products and service.