Side by side

HELM MiyakovsSheffield GMT

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

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Miyako
HELMMiyako
MSRP $375
GMT
SheffieldGMT
Buy from HELM ↗
Buy used on eBay ↗
Buy from Sheffield ↗
Buy used on eBay ↗

At a glance

12 of 29 specs differ
Diameter
Miyako40mm
GMT40mm
Power Reserve
Miyako42h
GMT—
Water Resistance
Miyako200m
GMT200m
MSRP
Miyako$375
GMT—

Full specifications

Case

4 specs
Category
Diver
GMT
Thickness
13.75mm
13mm
Lug-to-Lug
47mm
48mm
Lug Width
22mm
20mm

Crystal & Dial

4 specs
Crystal Shape
Double-Domed
Flat
AR Coating
Yes
Inner
Dial Color
Gray
Blue
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
—
Seiko NH34
Power Reserve
42h
—
Jewels
24
25

Pricing

1 specs
MSRP
$375
—
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