Side by side

Santurce Guaraguao Time Only — Automatic Pilot WatchvsSeiko Prospex SPEEDTIMER Mechanical

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

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

What people say

Owners + reviewers, side by side

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

Santurce Guaraguao Time Only — Automatic Pilot Watch

Owners praise the Santurce Guaraguao Time Only — Automatic Pilot Watch as a versatile bargain with excellent specifications, highlighting its strap versatility, bright lume, and good customer service. The watch is noted for its solid feel and a secure screwdown crown, with one owner finding the 42mm case size good for a 7-inch wrist. Criticisms include a seconds hand that some find cheap-looking and a date window described as uninspired, while the prominent branding is considered divisive. Overall, owners rate the Santurce Guaraguao Time Only — Automatic Pilot Watch highly for its value and luminous display.

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.

At a glance

14 of 29 specs differ
Diameter
Guaraguao Time Only — Automatic Pilot Watch42mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
Guaraguao Time Only — Automatic Pilot Watch
Prospex SPEEDTIMER Mechanical72h
Water Resistance
Guaraguao Time Only — Automatic Pilot Watch300m
Prospex SPEEDTIMER Mechanical200m
MSRP
Guaraguao Time Only — Automatic Pilot Watch$899
Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

6 specs
Category
Chronograph
Diameter
42mm
39.5mm
Thickness
11.7mm
12mm
Lug-to-Lug
51mm
44.5mm
Lug Width
22mm
20mm
Water Resistance
300m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
Miyota 9075
Seiko 6R55
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$899
$995
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Santurce Guaraguao Time Only — Automatic Pilot Watch vs Seiko Prospex SPEEDTIMER Mechanical gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.