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 $795

At a glance

12 of 29 specs differ
Diameter
Expedition II41mm
Prospex Sea34mm
Power Reserve
Expedition II38h
Prospex Sea40h
Water Resistance
Expedition II200m
Prospex Sea200m
MSRP
Expedition II$699
Prospex Sea$795

Full specifications

Case

5 specs
Category
Tool
Diver
Diameter
41mm
34mm
Thickness
14mm
8.7mm
Lug-to-Lug
48mm
40.8mm
Lug Width
20mm
16mm

Crystal & Dial

3 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
I Eiger
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW200-1
6N01
Type
Automatic
Quartz
Power Reserve
38h
40h

Pricing

1 specs
MSRP
$699
$795

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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 value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

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