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For the Enthusiast

Considered the best value traveler’s GMT amongst collectors.

“Jack Mason is redefining value in horology.”

Fratello Watches

Collectors Can’t Get Enough of this American Assembled Traveler’s GMT

USA Assembled

Regulated Miyota 9075

Sapphire Sandwich

Premium Bracelet

All The Specs You Wanted

and Even More

Accurate to +/-5 spd

Every Strat-o-timer GMT is regulated in the USA to maximize the performance and accuracy of the movement.

Jumping Hour Hand

Easily set the GMT hand to home time and then conveniently adjust the local hour hand while traveling.

Tool-less Micro Adjust

The buckle ensures a great fit and accommodates the natural swell of your wrist without the need for a tool.

The Reviews

A Collector's Thoughts

Watch Chris

120k+ Subscribers

Random Rob

79k+ Subscribers

Average Bros

30k+ Subscribers

Relative Time

40k+ Subscribers

Niel D.

“What a watch!! Just obsessively detailed beautiful piece of art. This watch is the holy grail watch one should aspire to buy!! Made me really happy with the purchase. Ps. This is my one of the 100 Jack Masons I own. I know. Crazy.”

Michael N.

“I own a lot of watches, and I have to say that the Strat is the best value going. The fit and finishing are excellent. The regulation on this watch is flawless. Its accuracy surpasses my Speedmaster! You absolutely can’t go wrong with this watch.”

Zen L. (from Gear Patrol)

“Getting this Strat-O-Timer (in Espresso) on the wrist… I gotta say, it’s impressive. The value and execution blew my expectations away. Very nice stuff. And it’s cool to see the Miyota 9075 GMT movement working its way into more watches, too, and how it can be elevated.”

Chris K.

“The Strat-o-timer is without question above a Seiko for me… the movement alone is so crisp… blows the Seiko 5 GMT out of the water… This is by far going to be my favorite daily watch. It’s got a subtle presence yet robust feel all at the same time. I love this watch… just incredible.”

The Movement

Miyota 9075: Why It’s a Big Deal

The Miyota 9075 is a self-winding movement with a 42 hour power reserve, 24 jewels, and 28,800vph. Its functions include a GMT with jumping hour, which is functionally identical to a Rolex GMT-Master II and is generally only reserved for watches in higher price ranges.

Regulated for Accuracy

Every Strat-o-timer GMT has been regulated for higher accuracy by Jack Mason. Like a car engine, we take a stock part and maximize its output for better performance.

Regulated

+/-5 spd

Stock

+30/-10 spd

Assembled in America

We are bringing watch assembly closer to home in order to have full ownership over quality control. This is another step closer to fulfilling our vision in establishing ourselves as a legacy brand that holds generational value.

Extra Quality Control

Added Value

Jumping Hour Hand

A traveler’s GMT allows for independent adjustment of the time without affecting the GMT hand (which a Caller GMT can’t do). This means a wearer can set the GMT hand to home time and then conveniently adjust the local hour hand while traveling.

Travelers GMT

Caller GMT

Punches Way Above It’s Weight

Compare Popular GMTs Below

Seiko 5 GMT

GMT TYPE

Caller

ACCURACY

+40 / -20 spd

CRYSTAL

Hardlex

BEZEL

Hardlex

BEZEL MECHANICS

Friction

WATER RESISTANCE

100m

CROWN

Push-pull

MICRO-ADJUSTMENTS

Tool Required

Strat-o-timer GMT

GMT TYPE

Travelers

ACCURACY

+/-5 spd

CRYSTAL

Sapphire

BEZEL

Sapphire

BEZEL MECHANICS

48-Click

WATER RESISTANCE

200m

CROWN

Screw-down

MICRO-ADJUSTMENTS

No Tool

Rolex GMT Master II

GMT TYPE

Travelers

ACCURACY

+/-2 spd

CRYSTAL

Sapphire

BEZEL

Ceramic

BEZEL MECHANICS

48-Click

WATER RESISTANCE

100m

CROWN

Screw-down

MICRO-ADJUSTMENTS

No Tool

Quick-Adjust Clasp

The bracelet clasp has a built in tool-less micro adjusting feature that include 9 points of adjustments making this bracelet a comfortable fit for any wrist size.

No Tool Needed

9 Levels of Adjustment

The Bottom Line

Checks Every Box

The Strat-o-timer GMT is loaded with top of the line specifications and completely designed at our studio in Texas. This watch was held to the highest of standards.

Strat-o-timer GMT

Traveler’s

GMT

USA Assembled

& Regulated

Absolute Strap Monster

20mm 7-Row Bracelet

The 7-row, 316L stainless steel bracelet has a comfortable 20mm to 16mm taper and is equipped with solid, quick-release end links. The tool-less micro-adjust buckle seals the deal.

Jubilee Style

Brushed/Polished

Screwed Links

Quick-Adjust Clasp

Switch It Up With Other Straps

20mm 3-Row Bracelet

The 3-row, 316L stainless steel bracelet tapers from 20mm to 16mm, is equipped with solid, quick-release end links, and sports a scratch resistant coating. The tool-less micro-adjust buckle makes this a great everyday bracelet.

Scratch-Resist Coating

Brushed Finish

Screwed Links

Quick-Adjust Clasp

20mm Tropic Strap

The 20mm Jack Mason tropic strap is equipped with quick release pins for tool less strap interchangeability. The FKM material gives this rubbery strap a luxury feel that’s not too flimsy or too stiff, and performs perfectly in the water.

Premium FKM

Quick-Release Pins

Debossed Lone Star

Locking Keeper Tabs

Independent Texas Watch Brand

The Heartbeat of Texas

With our roots established in Texas, our mission is to become a legacy watch brand in our home state by building premium quality watches that are designed with honesty, intent and purpose.


Our Design to Watch series follows the Jack Mason team through the multi-stage process of materializing a watch from concept to prototype. Watch along at each step of the process.

“I think they’ve hit one out of the park on this. I really do.”

Watch Chris

“There’s just so much to like here.”

Relative Time