Side by side
Jack Mason Strat-o-timer GMTvsSeiko 5 Sports Field series
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Strat-o-timer GMT42mm
5 Sports Field series39.4mm
Power Reserve
Strat-o-timer GMT40h
5 Sports Field series41h
Water Resistance
Strat-o-timer GMT200m
5 Sports Field series100m
MSRP
Strat-o-timer GMT$1,149
5 Sports Field series$315
Full specifications
Case
6 specsCategory
—
Sport
Diameter
42mm
39.4mm
Lug-to-Lug
49mm
48.1mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m
Crystal & Dial
4 specsCrystal
Sapphire
Hardlex
Crystal Shape
Flat
Curved
Dial Color
—
Black
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Miyota 9075
4R36
Power Reserve
40h
41h
Jewels
25
24
Pricing
1 specsMSRP
$1,149
$315
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Jack Mason Strat-o-timer GMT vs Seiko 5 Sports Field series gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Jack Mason Strat-o-timer GMTvsSeiko 5 Sports Field seriesDuckworth Prestex Rivington GMT AutomaticvsSeiko 5 Sports Field seriesDuckworth Prestex Rivington GMT Special EditionvsSeiko 5 Sports Field seriesNadir Vespera GMTvsSeiko 5 Sports Field seriesChristopher Ward C63 Sealander RocksvsJack Mason Strat-o-timer GMTJack Mason Strat-o-timer GMTvsSpinnaker Croft