Jack Mason Strat-o-timer GMTvsRolex Sky-Dweller

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Jack Mason Strat-o-timer GMT at true scale

Strat-o-timer GMT

Rolex Sky-Dweller at true scale

Sky-Dweller

Diameter

42mm

42mm

Lug-to-Lug

49mm

n/a

Thickness

13.2mm

n/a

Water Resistance

200m

highest

100m

Power Reserve

42h

72h

highest

MSRP

$1,149

lowest

$17,750

Movement

Miyota 9075

Rolex 9002

Case

7 specs
Thickness
13.2mm
n/a
Lug-to-Lug
49mm
n/a
Lug Width
22mm
n/a
Material
316L Stainless Steel
Yellow Rolesor
Finish
n/a
White Rolesor - combination of Oystersteel and white gold
Water Resistance
200m
100m
Caseback
n/a
Monobloc middle case, screw-down case back and winding crown

Crystal & Dial

4 specs
Crystal Shape
n/a
Flat
Dial Color
n/a
Blue
Indices
n/a
Index
Lume
None
Chromalight

Movement

7 specs
Caliber
Miyota 9075
Rolex 9002
Beat Rate
0 vph
28,800 vph
Power Reserve
42h
72h
Jewels
0
40
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
GMT, Annual Calendar, Date

Pricing

1 specs
MSRP
$1,149
$17,750
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Jack Mason Strat-o-timer GMT

Owners widely praise the Jack Mason Strat-o-timer GMT for its exceptional value and traveler GMT functionality, citing the Miyota 9075 movement and impressive fit and finish, including screw-in bracelet pins, on-the-fly adjustment, sapphire crystal front and back, and a screw-down crown. The 7-link bracelet is frequently highlighted as a standout feature, with one owner calling it the best they have worn. Some reviewers note "chubby" hour markers and a bezel insert that one owner perceived as plastic, though another stated it is sapphire. Overall, owners rate the Jack Mason Strat-o-timer GMT highly for its impressive build quality and traveler GMT complication at its price point.

From video reviewers

The Miyota 9075 true GMT movement is a consensus strength. The lume on the hands, dial, and bezel is also a shared positive feature. Reviewers did not reach a consensus on any weaknesses or points of disagreement.

Rolex Sky-Dweller

The Rolex Sky-Dweller is widely praised for its unique annual calendar and dual time zone complications, offering exceptional value and complexity. Owners consistently highlight its excellent fit and finish, with crisp dial markers and hands demonstrating irreproachable attention to detail. The 42mm case size is a point of contention, with some finding it wears smaller than expected and others deeming it too large or top-heavy for everyday wear, particularly on smaller wrists. Availability is a significant issue, with certain configurations like the green dial on Jubilee or stainless steel blue dial being extremely difficult to obtain from authorized dealers, leading to high grey market prices. Some owners view the cyclops and fluted bezel as drawbacks, while others appreciate the watch as a stunning, albeit sometimes "blingy," jewelry piece suitable for occasional wear.

From video reviewers

The Saros annual calendar and Ring Command bezel are ingenious mechanical features. The dual-time functionality is ideal for travelers. The secondary market price significantly exceeds MSRP.

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