Seiko SRP779vsTudor Pelagos FXD Chrono
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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.

SRP779

Pelagos FXD Chrono
Diameter
45mm
43mm
Thickness
13.4mm
lowest
13.6mm
Water Resistance
200m
200m
Power Reserve
41h
70h
highest
MSRP
n/a
$5,875
Movement
Seiko 4R36
Tudor MT5813
Case
4 specsCrystal & Dial
2 specsMovement
6 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Seiko SRP779 for its value, robust build, and comfortable wearability, with many citing its hacking and hand-winding 4R36 movement as a significant upgrade. Reviewers and owners alike highlight its strong lume, smooth bezel action, and the comfort of its silicone strap, which is considered an improvement over previous offerings. One owner notes exceptional accuracy at -1.5 seconds per day. The SRP779 is seen as a faithful recreation of a classic diver, offering excellent historical ties and versatility for daily wear. On balance, owners and reviewers rate the Seiko SRP779 highly for its exceptional value and reliable performance as a robust automatic diver.
The Tudor Pelagos FXD Chrono is widely praised for its lightweight carbon composite case, making it comfortable and easy to wear, especially on wrists accustomed to smaller watches. Its exceptional legibility, particularly underwater, and the functional bidirectional countdown bezel are highlighted as key strengths for its intended tool-watch purpose. Owners and reviewers note the MT5813 automatic movement's COSC certification and 70-hour power reserve, with accuracy figures ranging from -2 to +4 seconds per day. Some variants, like the Cycling Edition, feature a tachymeter scale, though its practicality for modern cyclists is debated, and water resistance is noted as 100m for these specific models, differing from the 200m of other FXD versions. On balance, owners and reviewers highly rate the Tudor Pelagos FXD Chrono for its robust, lightweight build and excellent legibility, making it a capable tool watch.
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