Side by side

Timefactors SMITHS NATO PRS-40 AUTOMATICvsYema Pearldiver

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

Pearldiver
YemaPearldiver
MSRP $491
What people say

Owners + reviewers, side by side

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

Timefactors SMITHS NATO PRS-40 AUTOMATIC

Owners widely praise the Timefactors SMITHS NATO PRS-40 AUTOMATIC for its unique, "badass," rugged, and futuristic design, with some finding its "ugly" aesthetic appealing for its bombproof nature. The Seiko 6R15 movement winds smoothly and operates quietly, and the watch features 100m water resistance and a flat sapphire crystal. The 12 o'clock crown is noted as easy to use by rolling, and the fixed lugs necessitate NATO straps. Some owners report issues with Timefactors' ordering system and customer service, and one found a speck of dust under the crystal, though another noted no imperfections. Overall, owners rate the Timefactors SMITHS NATO PRS-40 AUTOMATIC highly for its distinctive "beater" watch build and unique aesthetic at the price.

Yema Pearldiver

Owners widely praise the Yema Pearldiver's vintage aesthetic, clean dial, and sub-40mm dimensions with short lug-to-lug, noting its in-house movement and solid build quality. Accuracy figures range from dead-on at 0 seconds per day to +2 seconds per day, though some owners have reported dead-on-arrival movements requiring returns. The bracelet clasp is described by one owner as "pretty cheap." Some find the design pedestrian and lacking uniqueness, with the faux lume color noted as too dark by one commenter. Overall, owners rate the Yema Pearldiver highly for its vintage appeal and wearable dimensions at the price.

At a glance

10 of 29 specs differ
Diameter
SMITHS NATO PRS-40 AUTOMATIC40.2mm
Pearldiver38mm
Power Reserve
SMITHS NATO PRS-40 AUTOMATIC50h
Pearldiver40h
Water Resistance
SMITHS NATO PRS-40 AUTOMATIC100m
Pearldiver100m
MSRP
SMITHS NATO PRS-40 AUTOMATIC$315
Pearldiver$491

Full specifications

Case

6 specs
Category
Diver
Diameter
40.2mm
38mm
Thickness
12.25mm
14mm
Lug-to-Lug
54.7mm
46mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Steel

Movement

2 specs
Caliber
6R15
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$315
$491
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