Side by side
Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no datevsSeiko Prospex LX line
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date40mm
Prospex LX line44.8mm
Power Reserve
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date—
Prospex LX line72h
Water Resistance
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date200m
Prospex LX line300m
MSRP
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date$238
Prospex LX line$6,500
Full specifications
Case
6 specsDiameter
40mm
44.8mm
Thickness
12.8mm
15.7mm
Lug-to-Lug
46mm
50.9mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
200m
300m
Crystal & Dial
3 specsAR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White/Blue
Black
Lume
Swiss blue lume
LumiBrite on hands and index(es)
Movement
4 specsCaliber
Seiko NH35A
5R65
Type
Automatic
Spring Drive
Power Reserve
—
72h
Jewels
25
30
Pricing
1 specsMSRP
$238
$6,500
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