Prometheus Design Werx

Adventure Is
Out There

The original and the best, our newly updated Expedition Watch Band Compass Kit 2.0 was created for the modern explorer and adventurer. A best-grade, personal navigation tool, to get you there and back again to tell the tale.

On Land or in the Sea

Precision made in aerospace grade titanium, a personal navigation device designed for all terrains. #hikebikecampshootridedive


Updated and

The invention and introduction of the magnetic compass transformed the known world. Unreliant on batteries or circuit boards, a magnetic compass is the directional navigation tool in its most distilled and purest form.


Another significant update is the ability to change out the compass element effortlessly and without any tools. Swap out button compasses as needed, or for the optional thermometer. 


Shown here with our optional thermometer. Easy to swap out with compass at will. No tools required.


The new split back design allows for the mounting of these to closed-loop type watch bands like the Marine Nationale Para variety. And of course these will slide over your standard NATO type bands as well. 

4 Silicone
Carriers Included

In addition to compatibility with a number of nylon-centric watch bands, our Expedition Watch Band Compass Kit 2.0 now also includes all 4 colors of silicone carriers. Change out the differently colored carriers to your liking or needs. The gray, OD green, and orange feature UV inhibitors to prevent fading and the 4th is glow-in-the-dark.

Built for

The EWBCK 2.0 is your first and last piece of personal nav equipment. Compact and easily worn on NATO and MN Para type watch bands, or on your equipment with the included silicone carriers. Always know your heading, in any environment. Our design process to create this modern classic drew inspiration from similar compass units used and worn by UDTs, Combat Swimmers, Explorers, and Adventurers from different era. No batteries required, ever. 

Carry Options

These can be girth hitched to your pack's webbing straps, D-rings, sternum straps and more. 

Reliable Legacy

The invention and introduction of the magnetic compass transformed the known world. Unreliant on batteries or circuit boards, a magnetic compass is the directional navigation tool in its most distilled and purest form.

Product Specs



  • Case: 6AL-4V Titanium
  • Compass: Oil Filled with an Acetyl Cellulose Body
    • Note that oil filled compasses of any type may have tiny bubbles appear and disappear over time. This is a natural result of changes in altitude and barometric pressure in your area of use. These tiny bubbles, if they do appear, do not affect the accuracy or function of the your compass in any way. 
  • Carrier Body: Silicone with UV Inhibitors

Approx. Dimensions

Approx. Dimensions:

  • Compass Case Diameter: 0.98” / 24.88mm
  • Compass Case Height: 0.34" x 8.60mm
  • Total Height with Split Back: 0.47" x 11.94mm

Approx. Weight

Approx. Weight:

  • 0.30oz / 8.50g



  • Depth Rated to 100M/300' Water Resistance
  • Custom Black Dial Button Compass with Luminous Glow in the Dark Markings and Orange Accent N Triangle
  • Fine Matte Finish 6AL-4V Titanium Case
  • Threaded 2-Piece Construction
  • Milled Fluted Pattern
  • Tooless Change-Out of Compass or Thermometer
  • Fits NATO Type Watch Bands 20mm to 22mm
  • Split Back Fits Closed-Loop Marine Nationale Para Type Watch Bands 20mm to 22mm



  • PDW Logo

Customer Reviews

Based on 9 reviews
Joe Ralston
Cool compass

Nice compass that complements my watch well. It’s not too large and is stable with the retention band.

Brett Collins
Perfect mate to my Rolex!

I had to cut a small Ranger band in half to sandwich the Compass on the strap as it is a 20/22mm set up and my Bond Zulu strap is 20mm for the 5513. I hate stuff that rattles or moves and this works and the compass looks awesome in this setup! Now to get a black one for my vintage Traser dive watch.


Expedition Watch Band Compass Kit 2.0 - TiP

Whereth the time has gone?

If you’re constantly looking at your watch wondering “where has the time gone?”, this TiP housed button compass will surely show you the way! As you’d expect from PDW, the quality and fit n finish are top notch and leave little to be desired! My unit didn’t have the o-rings to lock it down on my Vaer 20mm NATO strap, but PDW’s fantastic customer support sent them out to me toot suite and now I’ll always know where the time has gone. Bravo!

nicholas merva
Great fit for NATO straps

Fits thin NATO straps great, won't fit the leather backed WOE straps. Compass seems accurate enough for a small button type.

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