Side by side

Seestern S456 GMTvsSheffield 1A 40mm

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

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S456 GMT
SeesternS456 GMT
MSRP $299
1A 40mm
Sheffield1A 40mm
MSRP $228
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At a glance

13 of 29 specs differ
Diameter
S456 GMT41mm
1A 40mm40mm
Power Reserve
S456 GMT41hh
1A 40mm40h
Water Resistance
S456 GMT200m
1A 40mm200m
MSRP
S456 GMT$299
1A 40mm$228

Full specifications

Case

5 specs
Category
GMT
—
Diameter
41mm
40mm
Lug-to-Lug
49mm
48mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Brushed and polished

Crystal & Dial

2 specs
Dial Color
Sunray style, applied and Diamond cut Indices, C1 lume
—
Lume
C1
None

Movement

5 specs
Caliber
Seiko NH34
Seiko NH35
Beat Rate
3 vph
28,800 vph
Power Reserve
41hh
40h
Jewels
24
25
Complications
GMT
None

Pricing

1 specs
MSRP
$299
$228
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