Side by side

Spinnaker Spence 300vsTimefactors PRS-40

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

Spence 300
SpinnakerSpence 300
MSRP $650
PRS-40
TimefactorsPRS-40
MSRP $315
What people say

Owners + reviewers, side by side

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

Spinnaker Spence 300

The Spinnaker Spence 300 is widely praised for its slim 10.9mm case and 40mm diameter, offering a comfortable and uncommon thin diver design at its price point. Reviewers and owners highlight its value, especially below $350, and its blend of retro design with modern specifications, including a 300m depth rating and a fully indexed bezel. Some owners, however, find the dial printing and bracelet finishing to be less refined, with one noting the bracelet's male end links as a drawback. The consensus is that the Spinnaker Spence 300 is highly regarded for its exceptional value and wearable dimensions, making it a strong contender for an everyday sports watch.

Timefactors PRS-40

Owners widely praise the Timefactors PRS-40 for its unique, "badass" and rugged, futuristic design, with many highlighting the 12 o'clock crown as a distinctive and appreciated feature. The bead-blasted finish is noted to show light marks but resists deep scratches, and the sapphire crystal is considered good. While some owners find the 40.2mm case size acceptable, others describe the watch as large and wearing big, though it is noted to wear thinner than an automatic version. The fixed lugs necessitate the use of NATO straps, and the included strap is well-regarded. On balance, owners rate the Timefactors PRS-40 highly for its distinctive, bombproof design and unique crown placement at an accessible price point.

At a glance

12 of 29 specs differ
Diameter
Spence 30040mm
PRS-4040.2mm
Power Reserve
Spence 30040h
PRS-4040h
Water Resistance
Spence 300300m
PRS-40100m
MSRP
Spence 300$650
PRS-40$315

Full specifications

Case

7 specs
Category
Diver
Diameter
40mm
40.2mm
Thickness
11.5mm
12.25mm
Lug-to-Lug
48mm
53.5mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Aquamarine
Black
Lume
None
SuperLuminova C3

Movement

2 specs
Caliber
Seiko NH35
Seiko VK61
Type
Automatic
Mecaquartz

Pricing

1 specs
MSRP
$650
$315
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.

Follow this matchup

Get a note when Spinnaker Spence 300 vs Timefactors PRS-40 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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