Side by side

Santurce Guaraguao Time Only — Automatic Pilot WatchvsSeiko Prospex Sea

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.

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 Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

At a glance

12 of 29 specs differ
Diameter
Guaraguao Time Only — Automatic Pilot Watch42mm
Prospex Sea43.8mm
Power Reserve
Guaraguao Time Only — Automatic Pilot Watch
Prospex Sea41h
Water Resistance
Guaraguao Time Only — Automatic Pilot Watch300m
Prospex Sea200m
MSRP
Guaraguao Time Only — Automatic Pilot Watch$899
Prospex Sea$625

Full specifications

Case

5 specs
Category
Diver
Diameter
42mm
43.8mm
Thickness
11.7mm
12.8mm
Lug-to-Lug
51mm
48.7mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9075
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$899
$625
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