Side by side

Hemel HFT20vsSeiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

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.

Hemel HFT20

The Hemel HFT20 Chronograph is praised for its legible matte black dial, sapphire crystal, and the satisfying sweep of its chronograph hand, powered by the Seiko VK64 meca-quartz movement. Reviewers note its convenient wearability, with a 42mm case that wears well due to its 49mm lug-to-lug measurement, and a comfortable, well-made leather strap. However, its 16mm thickness is considered slightly more than ideal for the movement, and the chronograph minutes sub-dial does not precisely jump. Overall, reviewers find the Hemel HFT20 to be an accessible and modern interpretation of vintage designs, offering good value at $449.

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.

At a glance

14 of 29 specs differ
Diameter
HFT2042mm
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm
Power Reserve
HFT2040h
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h
Water Resistance
HFT20100m
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m
MSRP
HFT20$450
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42mm
44mm
Thickness
13mm
Lug-to-Lug
49mm
49.3mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Seiko VK64
8L35
Type
Quartz
Automatic
Power Reserve
40h
50h
Jewels
25
26

Pricing

1 specs
MSRP
$450
$3,300
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