Side by side

Boldr Expedition IIvsSeiko Prospex Sea

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

Expedition II
BoldrExpedition II
MSRP $699
Prospex Sea
SeikoProspex Sea
MSRP $900

At a glance

11 of 29 specs differ
Diameter
Expedition II41mm
Prospex Sea41mm
Power Reserve
Expedition II38h
Prospex Sea70h
Water Resistance
Expedition II200m
Prospex Sea200m
MSRP
Expedition II$699
Prospex Sea$900

Full specifications

Case

3 specs
Category
Tool
Diver
Thickness
14mm
12.3mm
Lug-to-Lug
48mm
46.9mm

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
I Eiger
Black
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1
6R35
Power Reserve
38h
70h
Jewels
25
24

Pricing

1 specs
MSRP
$699
$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.

Boldr Expedition II

Owners widely praise the Boldr Expedition II for its tool watch utility, legible dials, and bead-blasted finish, with many finding its 41mm size ideal for daily wear and comfortable on various wrists. Reviewers and owners alike highlight its excellent value, well-executed details, and the functional design of its knurled crown. Some owners note the dial color can appear creamier than expected online, and one reviewer found the stock rubber strap to be a minor criticism. The Sellita SW200 movement and domed sapphire crystal are also noted as positive features. On balance, owners and reviewers rate the Boldr Expedition II highly for its functional field watch design and excellent value.

From video reviewers

The Boldr Expedition II's solid construction and reliability are notable strengths. A weakness is the potential for dim lume brightness, as the entire dial is fully covered in lume but the reviewer's assessment implies it might be inadequate.

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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