Side by side

Nivada Grenchen Chronomaster 38mm Automatic ChronographvsSeiko Prospex SPEEDTIMER

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.

Nivada Grenchen Chronomaster 38mm Automatic Chronograph

Owners widely appreciate the Nivada Grenchen Chronomaster 38mm Automatic Chronograph for its perfect 38mm size and faithful vintage reproduction, with one owner finding its worn bezel enhances its appeal. Reviewers praise its unique "baked" tropical dial, which mimics patina without the risks of a vintage piece. However, one owner reported a feeling of poor construction and lighter-than-expected weight, while another regretted the automatic caseback causing the watch to sit high on the wrist. The chronograph's 100m water resistance is noted as a slight limitation. On balance, owners and reviewers rate the Nivada Grenchen Chronomaster 38mm Automatic Chronograph highly for its excellent vintage aesthetic and unique dial that offers the enjoyment of a tropical watch without the associated risks.

Seiko Prospex SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER's gorgeous, unique red dial and vintage-inspired design, finding it a sturdy and reliable everyday watch. Some owners, however, question the value proposition at around $700 for a solar quartz model, citing its 13-15mm thickness and the 24-hour subdial as drawbacks. Accuracy figures vary, with one owner reporting +1/+2 seconds per day, while another notes the V192 solar movement offers a six-month power reserve. Overall, owners and reviewers find the Seiko Prospex SPEEDTIMER a capable and versatile chronograph, with its striking dial and everyday wearability being the most frequently cited strengths.

From video reviewers

The Seiko Prospex SPEEDTIMER's solar movement provides reliable power without battery replacements and accurate timekeeping, with a claimed accuracy of ±15 seconds per month. A notable trade-off is the watch's slightly thicker profile and somewhat lacking lume brightness. Reviewers disagree on whether the bezel action is smooth and clicky, with one reviewer praising it and the other not mentioning it.

At a glance

14 of 29 specs differ
Diameter
Chronomaster 38mm Automatic Chronograph38mm
Prospex SPEEDTIMER39mm
Power Reserve
Chronomaster 38mm Automatic Chronograph
Prospex SPEEDTIMER
Water Resistance
Chronomaster 38mm Automatic Chronograph100m
Prospex SPEEDTIMER100m
MSRP
Chronomaster 38mm Automatic Chronograph$2,085
Prospex SPEEDTIMER$725

Full specifications

Case

5 specs
Diameter
38mm
39mm
Thickness
15.85mm
13.3mm
Lug-to-Lug
48.5mm
45.5mm
Finish
Brushed + Polished
Caseback
316L Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
White
Lume
x1
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
V192
Type
Automatic
Quartz
Beat Rate
4 vph
0 vph
Complications
GMT, Chronograph, Small seconds
None

Pricing

1 specs
MSRP
$2,085
$725
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