Side by side

Seestern Sub 300 V4vsJack Mason Strat-o-timer GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Sub 300 V4
SeesternSub 300 V4
MSRP $10
Strat-o-timer GMT
Jack MasonStrat-o-timer GMT
MSRP $1,099
Buy from Seestern ↗
Buy used on eBay ↗
Buy from Jack Mason ↗
Buy used on eBay ↗

At a glance

16 of 29 specs differ
Diameter
Sub 300 V442mm
Strat-o-timer GMT40mm
Power Reserve
Sub 300 V441h
Strat-o-timer GMT42h
Water Resistance
Sub 300 V4200m
Strat-o-timer GMT200m
MSRP
Sub 300 V4$10
Strat-o-timer GMT$1,099

Full specifications

Case

7 specs
Category
Diver
—
Diameter
42mm
40mm
Thickness
13mm
13.2mm
Lug-to-Lug
46mm
47mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Sandblasted
Brushed and polished
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Orange
—
Lume
Japan Lume (blue glow)
None

Movement

5 specs
Caliber
Seiko NH35A
Miyota 9075
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
42h
Jewels
24
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$10
$1,099
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Jack Mason Strat-o-timer GMTvsBoldr The T Rex By Boldr X NitecoreJack Mason Strat-o-timer GMTvsZelos Swordfish 3Jack Mason Strat-o-timer GMTvsBoldr Merlion 50th AnniversaryIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsJack Mason Strat-o-timer GMTSeestern Sub 300 V4vsJack Mason Strat-o-timer GMTDuckworth Prestex Broadgate GMT AutomaticvsSeestern Sub 300 V4
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