Side by side

Seiko Prospex SPEEDTIMER MechanicalvsYema Superman Heritage

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 Prospex SPEEDTIMER Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

Yema Superman Heritage

Owners widely praise the Yema Superman Heritage for its vintage aesthetic, comfortable bracelet with drilled lugs, and impressive packaging. Reviewers highlight its striking sunburst dial and unique bezel-lock mechanism. Some owners criticize bezel play, misaligned bezels, contrasting case and bracelet finishes, and long lugs. One reviewer notes that the high-polished case and dial color variation may affect legibility for some. On balance, owners and reviewers appreciate the Yema Superman Heritage for its authentic 1970s vibe and vintage charm.

At a glance

16 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical39.5mm
Superman Heritage39mm
Power Reserve
Prospex SPEEDTIMER Mechanical72h
Superman Heritage
Water Resistance
Prospex SPEEDTIMER Mechanical200m
Superman Heritage300m
MSRP
Prospex SPEEDTIMER Mechanical$995
Superman Heritage$1,004

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
39.5mm
39mm
Thickness
12mm
11.3mm
Lug-to-Lug
44.5mm
Lug Width
20mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
39mm Automatic
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
6R55
Sellita SW200-1
Power Reserve
72h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$995
$1,004
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