Cronos NH34 GMT Automatic Men Watch L6020MvsSeiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

Ref. us-pre-owned-cronos-nh34-gmt-automatic-men-watch-l6020m·MSRP $269
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

NH34 GMT Automatic Men Watch L6020M

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition
Diameter
40.5mm
40mm
Lug-to-Lug
n/a
46.4mm
Thickness
12.8mm
lowest
13mm
Water Resistance
200m
300m
highest
Power Reserve
n/a
72h
MSRP
$269
lowest
$1,400
Movement
Seiko NH34
Seiko 6R55
Case
4 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Cronos NH34 GMT Automatic Men Watch L6020M for its smooth crown action and perfectly aligned GMT hand, a common point of comparison to other NH34 watches. The watch is available in various colorways and dial options, including a striking white dial, and is noted as a definitive GMT homage with dimensions close to original designs. The bracelet features an Easylink Comfort Extension Link in addition to standard micro-adjustments. One owner flags the deep rehaut as a weak point, though it is not noticeable in daily wear and accommodates the NH34 movement's hands. Overall, owners rate the Cronos NH34 GMT Automatic Men Watch L6020M highly for its excellent GMT hand alignment and smooth crown action at the price point.
The Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition is praised for its comfortable MarineMaster case design and attractive wave-patterned silvery-white dial with a grey bezel insert. Owners note the 40mm case and 300m water resistance. Some owners criticize the 6R55 movement's accuracy, reporting deviations of +25/-15 seconds per day, and find the watch expensive for a limited edition with a large production run. Overall, owners find the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition a comfortable and attractive watch, though some question its value proposition due to accuracy concerns and its "limited" status.
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