Side by side

Boldr Five-in-a-RowvsSeiko Prospex SPEEDTIMER Mechanical

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

What people say

Owners + reviewers, side by side

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

Boldr Five-in-a-Row

Owners widely praise Boldr's lightweight titanium cases, value, and suitability for outdoor or adventure use. The 38mm size is considered perfect by some, and the topographical dial on one variant offers fantastic depth with well-matched Old-Radium C3 lume. However, some owners report issues with customer service and perceived poor quality for the price, while others find the 14mm thickness chunky and the dial cluttered, impacting legibility. Accuracy averages around +15 seconds per day, though specific complications like a pulsometer and respiration timer are noted as accurate and useful on one variant. Overall, owners rate Boldr highly for its lightweight, functional design and value, despite some concerns about build quality and legibility.

Seiko Prospex SPEEDTIMER Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

At a glance

13 of 29 specs differ
Diameter
Five-in-a-Row38mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
Five-in-a-Row
Prospex SPEEDTIMER Mechanical72h
Water Resistance
Five-in-a-Row200m
Prospex SPEEDTIMER Mechanical200m
MSRP
Five-in-a-Row$399
Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

5 specs
Category
Tool
Chronograph
Diameter
38mm
39.5mm
Thickness
12.8mm
12mm
Lug-to-Lug
44mm
44.5mm
Material
Titanium
Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Five In A Row I
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
NH35
6R55
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$399
$995
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