Side by side

Boldr Expedition IIvsUndone Aquadeep K9

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

Add a watch

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

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.

Undone Aquadeep K9

Owners report the Undone Aquadeep K9 offers good quality and a well-made OE strap, with the Seiko NH72 movement noted for reliability and accuracy. One owner experienced a very poor customer service interaction regarding delivery and a warranty claim denial for moisture damage, advising others against purchasing. Another owner found a review suggesting $150 was a good price for the watch, noting the brand's interesting designs originating from Hong Kong. On balance, owners value the watch's build quality and reliable movement, though customer service experiences can vary significantly.

At a glance

13 of 29 specs differ
Diameter
Expedition II41mm
Aquadeep K943mm
Power Reserve
Expedition II38h
Aquadeep K9
Water Resistance
Expedition II200m
Aquadeep K950m
MSRP
Expedition II$699
Aquadeep K9$1,150

Full specifications

Case

7 specs
Category
Tool
Diameter
41mm
43mm
Thickness
14mm
0mm
Lug-to-Lug
48mm
0mm
Lug Width
20mm
22mm
Material
Stainless Steel
Bronze
Water Resistance
200m
50m

Crystal & Dial

3 specs
AR Coating
Yes
Dial Color
I Eiger
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW200-1
Seiko NH72
Power Reserve
38h
0h

Pricing

1 specs
MSRP
$699
$1,150
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

DiscussionNot started
Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.