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Blancpain 6639-3637-55B Moon Phase Watch

6639-3637-55B

Overview

The Blancpain Villeret 6639-3637-55B is a 42mm men's automatic watch with a rose gold case and a black analog dial protected by sapphire crystal. It uses a 6639 caliber self-winding mechanical movement that can be manually wound and hacked (the second hand stops when the crown is pulled out). It ticks 6 times per second which gives the second hand a smoother movement than quartz watches which tick once per second. The watch should run for up to 8 days when fully wound and will self-wind when moved.

The 6639-3637-55B is currently ranked #345 in popularity out of 345 watches in this catalog. Check availability on Amazon.com. This watch is part of a family of two watches that are identical except for their color or strap. You can see the other variations in this family as well as other similar models on the left side of the pagein the similar watches section below. By clicking the checkbox under a similar model you can compare that model with this one side-by-side. We use nearly 100 different weighted criteria to calculate which models are the most similar to one another.

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The case of the 6639-3637-55B measures approximately 42mm wide (not including the crown) by 13mm thick and is water resistant to 30 meters. This should be sufficient for splashes & rain but is not recommended for baths, showers, swimming or diving. The watch has a display back to show of the 6639 movement.The rose gold bezel is fixed (cannot be rotated). The gap between the lugs is 20mm and the leather band can be removed using a band removal tool to be replaced with another band.

The 6639-3637-55B provides the following features and complications:

  • Minute hand
  • Hour hand
  • Day window to show the day of the week
  • Date hand to show the day of the month
  • Moonphase window to show the phase of the moon
  • Month window

Specifications [edit]

Full specifications are listed below. Please report any errors by clicking the edit link above then use the appropriate icon to provide your input. If the 6639-3637-55B is not exactly what you're looking for you can also search our catalog by selecting from an extensive list of criteria to help you find exactly what you are looking for.

General

Movement

  • Type Automatic
  • Caliber 6639
  • Jewels 35 
  • Beats per Hour 21,600 bph(6 bps)
  • Power Reserve 8 Days
  • Manual Winding Yes 
  • Hacking Yes 
  • Instructions  

Case

  • Case Width 42mm(without crown)
  • Case Thickness 13mm
  • Case Shape Round 
  • Case Material Rose Gold 
  • Crystal Material Sapphire 
  • Water Resistance 30 Meters(splashes & rain)
  • Crown Position 03:00 
  • Screw Down Crown No 
  • Second Crown No 

Complications

  • Minute Hand Yes 
  • Hour Hand Yes 
  • Day Window Yes 
  • Central Date Hand Yes 
  • Moonphase Yes 
  • Month Window Yes 

Band

  • Band Width 20mm
  • Replaceable Band Yes 
  • Band Material Leather 
  • Band Color Brown 

Dial

  • Dial Color Black 
  • Hour Markings Roman Numerals 
  • Subdial Position 6:00 
  • On the Dial

    "Swiss Made"
     

Bezel

  • Bezel Color Gold 
  • Bezel Function Fixed 
  • Bezel Material Rose Gold 
  • On the Bezel Nothing

Inner Bezel / Chapter Ring / Outer Dial

  • Inner Bezel Color Black 
  • On Inner Bezel Day of Month

Hand Colors

  • Hour Hand Gold 
  • Minute Hand Gold 

If you see anything that seems incorrect please let us know.

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