Side by side

Seiko King Seiko KSKvsTimefactors NAVIGATOR PRS-48

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.

Seiko King Seiko KSK

The King Seiko KSK is widely praised for its refined finishing, with owners and reviewers noting its sharp case, faceted lugs, and well-executed dial indices, often comparing its polishing favorably to Grand Seiko. Enthusiasts appreciate its slim, retro design, with some stating it wears smaller than its official size due to the cushion case and close-to-the-wrist feel. The use of the slimline Calibre 6L35 movement is seen as an upgrade, maintaining the watch's slender profile, though some owners express concern over the price point and the perceived value of the movement. Accuracy figures vary, with one owner reporting +5 to +7 seconds per day, while another notes +15/-10 seconds per day. Some owners have noted minor quality control issues such as misaligned screws or a burr on a hand. On balance, owners and reviewers rate the King Seiko KSK highly for its exceptional case and dial finishing at its price point.

Timefactors NAVIGATOR PRS-48

Owners widely praise the Timefactors NAVIGATOR PRS-48 for its simplicity, legibility, and 36mm case size, which satisfies a desire for a smaller timepiece. One owner finds it a versatile everyday and business-casual watch after five months of ownership. On balance, owners rate the Timefactors NAVIGATOR PRS-48 highly for its wearability and classic design at the price.

At a glance

14 of 29 specs differ
Diameter
King Seiko KSK36.1mm
NAVIGATOR PRS-4836mm
Power Reserve
King Seiko KSK72h
NAVIGATOR PRS-48
Water Resistance
King Seiko KSK100m
NAVIGATOR PRS-48100m
MSRP
King Seiko KSK$1,900
NAVIGATOR PRS-48$664

Full specifications

Case

5 specs
Category
Dress
Diameter
36.1mm
36mm
Thickness
11.6mm
11.3mm
Lug-to-Lug
43mm
46.4mm
Lug Width
19mm
18mm

Crystal & Dial

4 specs
Crystal Shape
Box
AR Coating
Anti-reflective coating on inner surface
Dial Color
Lume
LumiBrite on hands and index(es)
None

Movement

4 specs
Caliber
6R51
Sellita SW210-1
Type
Automatic
Manual
Power Reserve
72h
Jewels
24
0

Pricing

1 specs
MSRP
$1,900
$664
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