BEHRENS B027 In-House Manual Wind Movement

With a preset goal to be a true watch brand, BEHRENS has long planned for the development of in-house caliber movement since years ago. With this upcoming official launch of BEHRENS β€œβ€PERIGEE” model series, we have finally announced our 1st Cal.BM01 which is a manual wind movement completely developed in-house by our engineering team.

The design of Cal.BM01 movement is to integrate and adopt modern architectural elements into the structure (holding plates) of the movement to add a modern touch. The basic bridges and main plate will be black coated to add contrast. There will be a new clutching mechanism for the winding system. A power reserve indicator and with the design of the bridges, the gear train can be clearly seen.

The concept idea of PERIGEE is to obtain all the unique mechanical functions that we have developed over the years. From which the domed globe 24-hour indicator and the moon track system which have been our signature designs from previous models. To add more to this unique PERIGEE model, we have also developed a chain driven hours display and an all-new retrograde minute’s mechanism.

The Functions

β€œPERIGEE”, an all-new concept wristwatch featuring a ruby Chain driven hours’ display system. A domed globe to represent the day / night indication. A unique 2nd generation Moon Track system which orbits around the dial in Luna month basis. Also, a retro-grade minutes on the right.

The Rubies Chain Hours Display System

What makes this rubies chain system so special is that each of the links of the chain will be installed with rubies at the linkage to minimize friction to gain overall efficiency and to avoid energy / power lost. The difficulties for making this chain mechanism are that it requires a very high precision for production of parts as well as installation skills, so that it can be operated properly under different environments (such as temperature difference).

*** Chain drive system mostly appears in the automotive industry as an energy / power transmission mechanism and is always driven by gears. In simple terms, simply just like power transmitted from the engine of a motorcycle to the rear wheel.

Apart from this Rubies’ Chain mechanism driven by 2 main skeletonized gears that drive the 12 hour’s number tags attached to the chain for display of the hours, indicated by a blue pointer locating on the left-hand side of the Globe. The domed Globe, which has been one of BEHRENS signature design, which also acts as a Day / Night indication which turns 24 hours per cycle.

Then on the right-hand side of the dial, it’s a retro-grade type minutes display (with skeletonized design to show the relative mechanism). Furthermore, like our B020 APOLAR model, PERIGEE model will feature our 2nd generation Moon Track system that tells the position of the Moon in relation to the Earth. (This 2nd generation Moon Track system, differ from the one on APOLAR model, PERIGEE’s moon track system synchronizes with the time and is running on 27.3 Days per cycle. The moon position is to be set by the time to provide accurate position of the Moon in relation to the Earth.

This new model also featuring an all-new designed round case (43mm), coated in black attached with a domed sapphire crystal top to maximize the visibility of the mechanical module on the dial. The dial base has been designed as a simulation to the Moon surface in black.

Movement Specifications:

  • Model : Caliber BM01
  • Movement Size : 38.6mm (dia) / 5.0mm (thickness)
  • Frequency : 3Hz (18,000)
  • No. of Rubies : 26
  • Power Reserve : 45 Hours
  • Non-hacking seconds

Case Specifications:

  • Size : 43mm
  • Thickness : 16.8 mm (including sapphire Crystal
  • Back Cover : Sapphire Crystal
  • Water-Resistance : 5ATM (50m)
  • Material : Grade 5 Titanium

*** Please note currently pre-order is expected to start delivering in 1st quarter 2023 (subject to production schedule yet to be confirmed). Before you place and order, please contact us via email for confirmation.

Additional information
Weight 2 kg
Dimensions 60 × 40 × 40 cm
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