Side by side

Seiko Prospex SPEEDTIMER MechanicalvsYema Superman Heritage GMT Bronze

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

Prospex SPEEDTIMER Mechanical
SeikoProspex SPEEDTIMER Mechanical
MSRP $995
Superman Heritage GMT Bronze
YemaSuperman Heritage GMT Bronze
MSRP $1,499

At a glance

16 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical39.5mm
Superman Heritage GMT Bronze39mm
Power Reserve
Prospex SPEEDTIMER Mechanical72h
Superman Heritage GMT Bronze40h
Water Resistance
Prospex SPEEDTIMER Mechanical200m
Superman Heritage GMT Bronze300m
MSRP
Prospex SPEEDTIMER Mechanical$995
Superman Heritage GMT Bronze$1,499

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
39.5mm
39mm
Thickness
12mm
11.7mm
Lug-to-Lug
44.5mm
Lug Width
20mm
19mm
Material
Stainless Steel
Bronze
Water Resistance
200m
300m

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Bronze
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
6R55
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$995
$1,499

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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 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 GMT Bronze

The Yema Superman Heritage GMT Bronze is widely praised for its comfortable 39mm wearability and the value it offers, featuring an in-house GMT movement and bronze case. Owners and reviewers highlight the firm 120-click bezel, the impressive gilt markers and gradient dial, and the exceptionally soft and comfortable vintage leather strap. Some prefer a ceramic insert over aluminum, and one owner noted the bracelet clasp was stiff initially. The lume on the hands appears pale compared to the dial's richer coloration, and the bezel lock may not sit perfectly centered. The Yema Superman Heritage GMT Bronze is considered a bargain, with pricing noted around 700-750 Euros. On balance, owners and reviewers rate the Yema Superman Heritage GMT Bronze highly for its exceptional value and comfortable wearability.

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