MMI Watches Turret 300M - Model: TR2-DV (Midnightblue)vsSeiko Prospex Sea Save the Ocean Special Edition
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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.

Turret 300M - Model: TR2-DV (Midnightblue)

Prospex Sea Save the Ocean Special Edition
Diameter
40mm
43.8mm
Lug-to-Lug
47mm
lowest
48.7mm
Thickness
13.8mm
12.8mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
n/a
41h
MSRP
$425
lowest
$650
Movement
Seiko NH35
Seiko 4R35
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.
Owners are astonished by the quality and stunning details of the MMI Watches Turret 300M - Model: TR2-DV (MIDNIGHTBLUE), stating it looks even better in person. The watch is praised for its comfortable 40mm case size, 47mm lug-to-lug, and a slim 13.6mm thickness for a dive watch. Overall, owners rate the MMI Watches Turret 300M - Model: TR2-DV (MIDNIGHTBLUE) highly for its impressive in-person appearance and comfortable wearability.
The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its exceptional and beautiful dial designs, featuring wave patterns, gradient blues, and marine animal motifs that evoke the ocean, with many considering them among the best in their price range. Owners also note satisfactory lume, smooth bezel operation, and comfortable wearability, with some finding the 43.8mm case size and 13mm thickness to be well-balanced for daily wear. However, multiple sources criticize the bracelet clasp as flimsy, rattly, or underwhelming, and one owner reported returning the watch due to this. Some owners also note imperfect day/date wheel alignment as a common issue in this price segment. On balance, owners and reviewers rate the Seiko Prospex Sea Save the Ocean Special Edition highly for its stunning dial artistry and overall value.
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