Side by side

Sinn 103 St Ty HdvsJack 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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103 St Ty Hd
Sinn103 St Ty Hd
MSRP $2,797
Strat-o-timer GMT
Jack MasonStrat-o-timer GMT
MSRP $1,149
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Buy from Jack Mason ↗
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At a glance

16 of 29 specs differ
Diameter
103 St Ty Hd41mm
Strat-o-timer GMT42mm
Power Reserve
103 St Ty Hd48h
Strat-o-timer GMT40h
Water Resistance
103 St Ty Hd200m
Strat-o-timer GMT200m
MSRP
103 St Ty Hd$2,797
Strat-o-timer GMT$1,149

Full specifications

Case

8 specs
Category
Tool
—
Diameter
41mm
42mm
Thickness
14.7mm
13.2mm
Lug-to-Lug
—
49mm
Lug Width
20mm
22mm
Material
stainless steel
316L Stainless Steel
Finish
—
Brushed and polished
Caseback
—
Solid

Crystal & Dial

4 specs
Crystal Shape
—
Flat
AR Coating
—
Inner
Dial Color
Black
—
Indices
—
Applied

Movement

3 specs
Caliber
ETA 7750
Miyota 9075
Power Reserve
48h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$2,797
$1,149
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