Side by side
Sheffield 1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)vsSeiko Prospex Sea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)38mm
Prospex Sea41.3mm
Power Reserve
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)—
Prospex Sea72h
Water Resistance
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)200m
Prospex Sea300m
MSRP
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)$223
Prospex Sea$1,100
Full specifications
Case
4 specsDiameter
38mm
41.3mm
Thickness
12.8mm
12.5mm
Lug-to-Lug
46mm
48.2mm
Water Resistance
200m
300m
Crystal & Dial
3 specsAR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blue
Black
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH35
6R55
Power Reserve
—
72h
Jewels
25
24
Pricing
1 specsMSRP
$223
$1,100
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Sheffield 1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap) vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Sheffield 1A 38vsSeiko Prospex SeaSheffield 1AvsSeiko Prospex SeaSheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no datevsSeiko Prospex SeaIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsSeiko Prospex SeaBorealis Watch Co. Estoril 300 GMTvsSheffield 1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)Borealis Watch Co. JamantavsSheffield 1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)