La Touraine SeafarervsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch
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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.
Seafarer
Prospex Sea 1968 Heritage Diver's GMT Watch
Diameter
43mm
42mm
Lug-to-Lug
48mm
lowest
48.6mm
Thickness
11.4mm
lowest
13.3mm
Water Resistance
200m
300m
highest
Power Reserve
n/a
72h
MSRP
$550
lowest
$1,700
Movement
Miyota 9015
Seiko 6R54
Case
5 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The slim profile is a key strength, enabled by the Miyota 9015 movement. Reviewers noted the excellent bezel action. Water resistance, while good at 20 ATM, was considered less than typical for dive watches.
Owners and reviewers widely praise the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch for its excellent value, Marinemaster-style build, and comfortable 42mm steel case with a 4:00 crown position. The watch features a refined clasp with an impressive 15mm of micro-adjustment and a caller-style GMT complication. While the 6R54 movement's stated accuracy is +25 to -15 seconds per day, real-world performance is often found to be better. The watch is priced at $1,700 USD. Overall, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch highly for its attractive design and robust build quality at its price point.
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