Side by side

Sheffield Deep Gray 300vsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch

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

Deep Gray 300
SheffieldDeep Gray 300
MSRP $258

At a glance

11 of 29 specs differ
Diameter
Deep Gray 30042mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Deep Gray 30040h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Deep Gray 300300m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Deep Gray 300$258
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Full specifications

Case

4 specs
Category
Diver
Thickness
13.8mm
13.3mm
Lug-to-Lug
52mm
48.6mm
Lug Width
22mm
20mm

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH35
6R54
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$1,700
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