MMI Watches Cuttlechron Wave 316L SS (TRI-Lume) Model: CCS-10vsSeiko Prospex Sea 1968 Heritage Diver's GMT Limited 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.

MMI Watches Cuttlechron Wave 316L SS (TRI-Lume) Model: CCS-10 at true scale

Cuttlechron Wave 316L SS (TRI-Lume) Model: CCS-10

Seiko Prospex Sea 1968 Heritage Diver's GMT Limited Edition at true scale

Prospex Sea 1968 Heritage Diver's GMT Limited Edition

Diameter

42mm

42mm

Lug-to-Lug

n/a

48.6mm

Thickness

12.5mm

lowest

13.3mm

Water Resistance

150m

300m

highest

Power Reserve

n/a

72h

MSRP

$475

lowest

$1,750

Movement

Miyota 9039

Seiko 6R54

Case

4 specs
Thickness
12.5mm
13.3mm
Lug-to-Lug
n/a
48.6mm
Lug Width
22mm
20mm
Water Resistance
150m
300m

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9039
Seiko 6R54
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$475
$1,750
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

MMI Watches Cuttlechron Wave 316L SS (TRI-Lume) Model: CCS-10

Owners widely praise the MMI Watches CUTTLECHRON WAVE 316L SS (TRI-LUME) MODEL: CCS-10 for its excellent finishing and comfortable wearability, with one owner noting it exceeded expectations beyond its novelty dial. The watch is anticipated to feature great lume, a trait that MMI's lume is positively recognized for within the community. On balance, owners rate the MMI Watches CUTTLECHRON WAVE 316L SS (TRI-LUME) MODEL: CCS-10 highly due to its finishing and wearability, with a strong expectation for its luminous performance.

Seiko Prospex Sea 1968 Heritage Diver's GMT Limited Edition

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition is widely praised for its excellent quality and finishing for its price, with reviewers highlighting its beautiful case, bracelet, and Lumibrite lume. Owners appreciate the comfortable 42mm case size and the 4 o'clock crown position. The watch features a sapphire crystal and uses the in-house 6R54 automatic movement with a three-day power reserve. Some reviewers note that the GMT function is secondary and that the bezel clicks are quieter than expected. The 4:30 date window splits opinion among enthusiasts, and it is described as a "caller GMT" rather than a true "traveller GMT." Overall, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition highly for its excellent value, quality finishing, and comfortable wearability.

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