Side by side

DuFrane Watches Mabry MkII 39mm Titanium Mechanical Field WatchvsSeiko Prospex Sea

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

Prospex Sea
SeikoProspex Sea
MSRP $625
What people say

Owners + reviewers, side by side

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

DuFrane Watches Mabry MkII 39mm Titanium Mechanical Field Watch

The DuFrane Watches Mabry MkII 39mm Titanium Mechanical Field Watch is noted for its comfortable wearability and a dial that surpasses expectations in person, complemented by bright lume. However, some owners report slightly sharp inside edges on the lugs and a leather strap that does not feature quick-release spring bars. Overall, owners find the DuFrane Watches Mabry MkII 39mm Titanium Mechanical Field Watch comfortable and visually appealing, with the dial detail and lume being particular highlights.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

At a glance

14 of 29 specs differ
Diameter
Mabry MkII 39mm Titanium Mechanical Field Watch39mm
Prospex Sea43.8mm
Power Reserve
Mabry MkII 39mm Titanium Mechanical Field Watch42h
Prospex Sea41h
Water Resistance
Mabry MkII 39mm Titanium Mechanical Field Watch100m
Prospex Sea200m
MSRP
Mabry MkII 39mm Titanium Mechanical Field Watch$999
Prospex Sea$625

Full specifications

Case

7 specs
Category
Diver
Diameter
39mm
43.8mm
Thickness
11.4mm
12.8mm
Lug-to-Lug
46mm
48.7mm
Lug Width
20mm
22mm
Material
Titanium
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
Sellita SW200-1
4R35
Power Reserve
42h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$999
$625
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