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Flatline Chrono [42mm] - Black

6 reviews
The Flatline Chronograph is a favorite amongst pilots and non-pilots alike. Choose the easy-to-read full lume dial with great contrast, or the classic black pilot dial. With 100m of water-resistance, sapphire crystal, slim case, and ultra-functional chronograph movement, this watch is a true standout, ready to go wherever you want to take it!

Dial colour:

Band Type: Black 'Cloud' Leather

Stainless Steel
Black 'Cloud' Leather
Brown 'Cloud' Leather
Black Goma Rubber
Black Perforated Leather
Red Goma Rubber
  • Assembled in Canada
  • Free shipping on orders over $100
  • 2 year extendable warranty
  • Free returns
  • Made with true adventure in mind this lightweight practical and simple watch is designed to go everywhere you do
  • Comes standard with virtually scratch proof sapphire crystal
  • 100M water-resistance
  • Reliable and accurate Japanese quartz chronograph movement, made for Momentum by Epson (Seiko)..Flatline Chrono Instruction Manual
  • Movement: Japanese, Quartz, Epson YM92A
  • Dial Color: Black
  • Crown: Screw-down crown
  • Water Resistance (m/ft) : 100 / 330
  • Case Material: Stainless Steel
  • Crystal: Sapphire Only
  • Case Diameter: 42mm
  • Case Height: 10.5mm
  • Lug Width: 22mm
  • Lug-to-Lug: 48.5mm
Flatline Chrono [42mm] - Black
Flatline Chrono [42mm] - Black
Adventure In Mind

Made with true adventure in mind, this lightweight, practical, and simple watch is designed to go everywhere you do. The Flatline comes standard with virtually scratch proof sapphire crystal and has 100M of water-resistance with a screw-down crown.

Flatline Chrono [42mm] - Black
The Pilot’s Chronograph

The Flatline Chrono gives you classic analog stopwatch functionality without unnecessary complication. At the touch of the start button, you can time everything from laps time in the air, to the pizza in the oven.


Customer Reviews
4.7 Based on 6 Reviews
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Terje E.
I recommend this product

The watch.

A very nice and comfortly wrist watch.

Canada Canada
I recommend this product

No quick release pins

I have 2 Momentum watches, Flatline Chronograph and Steelix solar. Love them both. I ordered the Flatline with black cloud leather strap. My only issue is with the strap, it does not have quick release pins and it is a very tight fit and rubs on the case back and is already showing signs of wear.

Tim M.

keeping track of time

If you have watches, then one must be a chrono. The Flatline Chrono was my first Momentum watch. Because of it, there are now four others in the house; hey, if I like them that much, then my partner should have a couple, too. This was a tool watch to replace my old Rotary dive watch, which was too scratched, beat up, and too small (36mm) by current standards to deserve another battery. I've had the Flatline Chrono for years. (It can tell me exactly how long I've been putting off posting this review.) It was the watch worn to the boat, cycling, working in the yard, and on ski patrol. It still looks new. Seriously. New. Unlike most chronos, this one has an easy to read pilot style face. Big enough to use with a design that works and looks good even when not wearing a T-shirt. The case is very nicely finished and the SS bracelet is a quality complement. Pushers are nicely weighted and easy to use. The dials are very entertaining when resetting the timer. Highly recommended.


Momentum Watch

Dear Tim, Thank you again for the kind words, we really appreciate you taking the time to write these reviews :) All the best, Team Momentum

Dempster L.


As the owner of two Momentum watches, I can attest to the quality and great design. The Flatline Chrono looks like another winner. No one I know is interested in hanging more watch on their wrist than needed (I think that kinda thing went out in the '80's) and the Flatline looks like it's the right size for easy reading while being thin enough to stay comfortably unsnaggable when fighting alligators or opening car doors. High marks for the sapphire crystal, long distance battery and screw down crown, but best of all is the great price. Thank you,

Dave A.


I just received my Flatline Chrono 42 with a rubber strap and couldn’t be happier. The watch has a large dial but not too big for my small wrist. It is light weight and very comfortable, especially when compared to my other watches. The dial is clear/easy to read. It does NOT have the cluttered appearance that you get with most chronos. The numbers and hands glow in the dark well enough that I could still see the time when I woke up at 0345 this morning. I will say, however, that I’ve owned watches from St-Moritz Watch Corp. in the past that have lasted 20 yrs. They seem to make a solid product for a decent price; and I hope this watch will last just as long.