Side by side

Oak & Oscar The Humboldt GMT SAR EditionvsSeiko Prospex Sea

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

The Humboldt GMT SAR Edition
Oak & OscarThe Humboldt GMT SAR Edition
MSRP $2,950
Prospex Sea
SeikoProspex Sea
MSRP $900

At a glance

14 of 29 specs differ
Diameter
The Humboldt GMT SAR Edition39.5mm
Prospex Sea41mm
Power Reserve
The Humboldt GMT SAR Edition56 hoursh
Prospex Sea70h
Water Resistance
The Humboldt GMT SAR Edition200m
Prospex Sea200m
MSRP
The Humboldt GMT SAR Edition$2,950
Prospex Sea$900

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
39.5mm
41mm
Thickness
12.5mm
12.3mm
Lug-to-Lug
46.8mm
46.9mm
Material
Grade 5 Titanium
Stainless Steel
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
Crystal Shape
Double-domed
Curved
AR Coating
Underside
Anti-reflective coating on inner surface
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Sellita SW330
6R35
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
70h
Jewels
25
24

Pricing

1 specs
MSRP
$2,950
$900

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What people say

Owners + reviewers, side by side

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

Oak & Oscar The Humboldt GMT SAR Edition

Oak & Oscar The Humboldt GMT SAR Edition is praised for its anti-magnetic properties, sandwich lume dial, and overall construction quality for its price point. It features a brushed Grade 5 titanium case, a navy blue sandwich dial with an orange minute track and seconds hand, and a Sellita SW330 movement with a 56-hour power reserve. Minor drawbacks noted include bracelet sizing adjustment and lume brightness. On balance, owners and reviewers rate Oak & Oscar The Humboldt GMT SAR Edition highly for its robust construction and unique dial design at its price point.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

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