Side by side

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited EditionvsTudor Monarch

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

Monarch
TudorMonarch
MSRP $5,875

At a glance

18 of 29 specs differ
Diameter
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm
Monarch39mm
Power Reserve
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h
Monarch65h
Water Resistance
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m
Monarch100m
MSRP
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300
Monarch$5,875

Full specifications

Case

7 specs
Category
Diver
Diameter
44mm
39mm
Thickness
13mm
11.9mm
Lug-to-Lug
49.3mm
46mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
200m
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

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

Movement

6 specs
Caliber
8L35
MT5662-2U
Beat Rate
28,800 vph
0 vph
Power Reserve
50h
65h
Jewels
26
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$3,300
$5,875

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What people say

Owners + reviewers, side by side

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

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

Owners widely praise the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition for its attractive, well-made design and gorgeous dial, noting its jewel-toned teal color and rippling-water pattern. The bezel action is smooth with a muted sound, and the case and bracelet offer a more comfortable feel than previous iterations. However, multiple owners express disappointment with the accuracy of the 6R movement at its price point, with some noting theirs runs slow, and consider the price too high. The steep rehaut and marker size make the 24-hour numbers difficult to read, and some find the case design makes the watch feel top-heavy despite wearing smaller. Overall, owners rate the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition highly for its striking dial and refined case design, despite concerns regarding movement accuracy at its price.

Tudor Monarch

The Tudor Monarch is praised for its crisp case finishing, solid H-link bracelet with T-fit clasp, and a 39mm size that wears well, though its eclectic neoclassical dial design is noted. It features a METAS-certified Master Chronometer movement with a 65-hour power reserve, visible through a display case back. The watch has a vintage-inspired dial with a unique champagne color and California layout, though it lacks lume and its modern, angular 39mm case doesn't wear smaller than its dimensions suggest. Its 11.9mm thickness is noted as a bit disappointing, but faceted case sides and box sapphire crystals contribute to a slender wearing experience. On balance, reviewers praise the Tudor Monarch for its sharp case finishing and Master Chronometer movement at its price point.

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