Side by side

KUOE ROYAL SMITH 90-006vsSeiko Prospex Sea 1968 Heritage Diver's GMT

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

ROYAL SMITH 90-006
KUOEROYAL SMITH 90-006
MSRP $795
Prospex Sea 1968 Heritage Diver's GMT
SeikoProspex Sea 1968 Heritage Diver's GMT
MSRP $1,500
What people say

Owners + reviewers, side by side

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

KUOE ROYAL SMITH 90-006

Owners widely praise the KUOE ROYAL SMITH 90-006 for its visual appeal and sapphire crystal with AR coating. The watch functions correctly and keeps time at approximately +5 seconds per day on the wrist, powered by a Miyota 9039 movement. On balance, owners value the watch's aesthetics and specifications, though some question its overall value proposition.

From video reviewers

The watch's unique blend of modern and retro elements is a notable strength, with a textured ivory waffle dial and Breguet numerals giving it the look of a vintage watch from the 1950s and 1960s. A potential drawback is the ~$770 USD price point, which is significant for a microbrand. Reviewers disagree on the movement's accuracy, with one reviewer noting it is noisy and another describing it as a "Japanese-manufactured high beat premium automatic movement".

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and comfortable wearability, offering good value for its price point. Owners and reviewers highlight the attractive silver/white sunray dial, blue ceramic bezel, and the premium feel of the improved bracelet clasp with excellent micro-adjustment. The Caliber 6R54 movement provides a 72-hour power reserve, and real-world accuracy often exceeds its stated range of +25 to -15 seconds per day, with some owners reporting figures around +3 to +5 seconds per day. However, the caller-style GMT functionality is a point of contention for some, who find the GMT scale difficult to read and prefer a flyer GMT at this price. Some also find the crown position at 4 o'clock undesirable, and a few note a lack of dial contrast or illegibility of the inner bezel.

At a glance

14 of 29 specs differ
Diameter
ROYAL SMITH 90-00635mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
ROYAL SMITH 90-00642h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
ROYAL SMITH 90-006100m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
ROYAL SMITH 90-006$795
Prospex Sea 1968 Heritage Diver's GMT$1,500

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
35mm
42mm
Thickness
10.4mm
12.9mm
Lug-to-Lug
42mm
48.6mm
Lug Width
18mm
20mm
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal Shape
Dome
Flat
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Ivory
Black
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9039
6R54
Power Reserve
42h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$795
$1,500
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