Side by side

Boldr Expedition EnigmathvsSerket Watch Co Reef Mariana

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Expedition Enigmath
BoldrExpedition Enigmath
MSRP $599
Reef Mariana
Serket Watch CoReef Mariana
MSRP $449
What people say

Owners + reviewers, side by side

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

Boldr Expedition Enigmath

Boldr is widely praised for its attractive fumé dials, blend of sandblasted and polished case finishes, and excellent legibility. Owners report good build quality and value, with some calling it an excellent GADA or hiking watch, and the Miyota 9039 movement is noted for its smooth seconds hand sweep. However, the practical usefulness of the slide rule bezel is questioned, and some find the designs "microbrand-y" or potentially overpriced, with one owner reporting a negative warranty experience. On balance, owners and reviewers rate Boldr highly for its attractive dials and solid build quality at the price point.

From video reviewers

The watch's slide rule function is a convenient feature, allowing for calculations on the go. One potential drawback is the use of the Japanese Miyota 9039 movement, which may be a trade-off for some buyers. Reviewers disagree on whether the quick 'on the fly' adjust bracelet is a more significant advantage than the watch's sapphire crystal for durability and scratch resistance.

Serket Watch Co Reef Mariana

Owners widely praise the Serket Watch Co Reef Mariana for its significant value, citing the sapphire crystal, ceramic bezel, and NH35 automatic movement at its price point. Some owners note the bezel turns too easily and suggest the lume could be improved. On balance, owners rate the Serket Watch Co Reef Mariana highly for its bold aesthetic and strong feature set at the price.

At a glance

9 of 29 specs differ
Diameter
Expedition Enigmath41mm
Reef Mariana40mm
Power Reserve
Expedition Enigmath42h
Reef Mariana
Water Resistance
Expedition Enigmath200m
Reef Mariana200m
MSRP
Expedition Enigmath$599
Reef Mariana$449

Full specifications

Case

3 specs
Category
Tool
Diameter
41mm
40mm
Thickness
12.8mm
13.2mm

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enigmath Coconino
Orange
Lume
Super-LumiNova
BGW9

Movement

2 specs
Caliber
Miyota 9039
Seiko NH35
Power Reserve
42h

Pricing

1 specs
MSRP
$599
$449
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